X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/c35e155caf605c139c3e62606ff830744682c8a7..210f147e47759d98c1220a6c3b8bf185743a31df:/doc/doc-txt/ChangeLog diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog index e510820be..6891c5f3b 100644 --- a/doc/doc-txt/ChangeLog +++ b/doc/doc-txt/ChangeLog @@ -1,8 +1,1499 @@ -$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.222 2005/09/12 13:55:54 ph10 Exp $ +$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.537 2008/01/17 12:56:13 nm4 Exp $ Change log file for Exim from version 4.21 ------------------------------------------- +Exim version 4.70 +----------------- + +NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree. + When building exim an external PCRE library is now needed - + PCRE is a system library on the majority of modern systems. + See entry on PCRE_LIBS in EDITME file. + +Exim version 4.69 +----------------- + +TK/01 Add preliminary DKIM support. Currently requires a forked version of + ALT-N's libdkim that I have put here: + http://duncanthrax.net/exim-experimental/ + + Note to Michael Haardt: I had to rename some vars in sieve.c. They + were called 'true' and it seems that C99 defines that as a reserved + keyword to be used with 'bool' variable types. That means you could + not include C99-style headers which use bools without triggering + build errors in sieve.c. + +NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked + as mailq or other aliases. Changed the --help handling significantly + to do whats expected. exim_usage() emits usage/help information. + +SC/01 Added the -bylocaldomain option to eximstats. + +NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr + +NM/03 Bugzilla 613: Documentation fix for acl_not_smtp + +NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall) + + +Exim version 4.68 +----------------- + +PH/01 Another patch from the Sieve maintainer. + +PH/02 When an IPv6 address is converted to a string for single-key lookup + in an address list (e.g. for an item such as "net24-dbm;/net/works"), + dots are used instead of colons so that keys in lsearch files need not + contain colons. This was done some time before quoting was made available + in lsearch files. However, iplsearch files do require colons in IPv6 keys + (notated using the quote facility) so as to distinguish them from IPv4 + keys. This meant that lookups for IP addresses in host lists did not work + for iplsearch lookups. + + This has been fixed by arranging for IPv6 addresses to be expressed with + colons if the lookup type is iplsearch. This is not incompatible, because + previously such lookups could never work. + + The situation is now rather anomolous, since one *can* have colons in + ordinary lsearch keys. However, making the change in all cases is + incompatible and would probably break a number of configurations. + +TK/01 Change PRVS address formatting scheme to reflect latests BATV draft + version. + +MH/01 The "spam" ACL condition code contained a sscanf() call with a %s + conversion specification without a maximum field width, thereby enabling + a rogue spamd server to cause a buffer overflow. While nobody in their + right mind would setup Exim to query an untrusted spamd server, an + attacker that gains access to a server running spamd could potentially + exploit this vulnerability to run arbitrary code as the Exim user. + +TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use + $primary_hostname instead of what libspf2 thinks the hosts name is. + +MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for + a directory entry by the name of the lookup key. Previously, if a + symlink pointed to a non-existing file or a file in a directory that + Exim lacked permissions to read, a lookup for a key matching that + symlink would fail. Now it is enough that a matching directory entry + exists, symlink or not. (Bugzilla 503.) + +PH/03 The body_linecount and body_zerocount variables are now exported in the + local_scan API. + +PH/04 Added the $dnslist_matched variable. + +PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client. + This means they are set thereafter only if the connection becomes + encrypted. + +PH/06 Added the client_condition to authenticators so that some can be skipped + by clients under certain conditions. + +PH/07 The error message for a badly-placed control=no_multiline_responses left + "_responses" off the end of the name. + +PH/08 Added -Mvc to output a copy of a message in RFC 2822 format. + +PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly + (without spaces) instead of just copying the configuration text. + +PH/10 Added the /noupdate option to the ratelimit ACL condition. + +PH/11 Added $max_received_linelength. + +PH/12 Added +ignore_defer and +include_defer to host lists. + +PH/13 Installed PCRE version 7.2. This needed some changes because of the new + way in which PCRE > 7.0 is built. + +PH/14 Implemented queue_only_load_latch. + +PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a + MAIL command. The effect was to mangle the value on 64-bit systems. + +PH/16 Another patch from the Sieve maintainer. + +PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper. + +PH/18 If a system quota error occurred while trying to create the file for + a maildir delivery, the message "Mailbox is full" was not appended to the + bounce if the delivery eventually timed out. Change 4.67/27 below applied + only to a quota excession during the actual writing of the file. + +PH/19 It seems that peer DN values may contain newlines (and other non-printing + characters?) which causes problems in log lines. The DN values are now + passed through string_printing() before being added to log lines. + +PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle + and InterBase are left for another time.) + +PH/21 Added message_body_newlines option. + +PH/22 Guard against possible overflow in moan_check_errorcopy(). + +PH/23 POSIX allows open() to be a macro; guard against that. + +PH/24 If the recipient of an error message contained an @ in the local part + (suitably quoted, of course), incorrect values were put in $domain and + $local_part during the evaluation of errors_copy. + + +Exim version 4.67 +----------------- + +MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address + is unset (happens when testing with -bh and -oMi isn't used). Thanks to + Jan Srzednicki. + +PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not + issue a MAIL command. + +PH/02 In an ACL statement such as + + deny dnslists = X!=127.0.0.2 : X=127.0.0.2 + + if a client was not listed at all, or was listed with a value other than + 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list, + the condition was not true (as it should be), so access was not denied. + The bug was that the ! inversion was incorrectly passed on to the second + item. This has been fixed. + +PH/03 Added additional dnslists conditions == and =& which are different from + = and & when the dns lookup returns more than one IP address. + +PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the + cipher suites used by GnuTLS. These options are ignored by OpenSSL. + +PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_ + FSYNC, which compiles an option called disable_fsync that allows for + bypassing fsync(). The documentation is heavily laced with warnings. + +SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket. + +PH/06 Some tidies to the infrastructure of the Test Suite that is concerned + with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT + to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile, + including adding "make clean"; (3) Added -fPIC when compiling the test + dynamically loaded module, to get rid of a warning. + +MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce + message fails, move_frozen_messages = true and ignore_bounce_errors_after + = 0s. The bug is otherwise harmless. + +PH/07 There was a bug in the dovecot authenticator such that the value of + $auth1 could be overwritten, and so not correctly preserved, after a + successful authentication. This usually meant that the value preserved by + the server_setid option was incorrect. + +PH/08 Added $smtp_count_at_connection_start, deliberately with a long name. + +PH/09 Installed PCRE release 7.0. + +PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being + run for batched SMTP input. It is now run at the start of every message + in the batch. While fixing this I discovered that the process information + (output by running exiwhat) was not always getting set for -bs and -bS + input. This is fixed, and it now also says "batched" for BSMTP. + +PH/11 Added control=no_pipelining. + +PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's + patch, slightly modified), and move the expansion of helo_data till after + the connection is made in the smtp transport (so it can use these + values). + +PH/13 Added ${rfc2047d: to decoded RFC 2047 strings. + +PH/14 Added log_selector = +pid. + +PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set. + +PH/16 Add ${if forany and ${if forall. + +PH/17 Added dsn_from option to vary the From: line in DSNs. + +PH/18 Flush SMTP output before performing a callout, unless control = + no_callout_flush is set. + +PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender + was true (the default) a successful delivery failed to delete the retry + item, thus causing premature timeout of the address. The bug is now + fixed. + +PH/20 Added hosts_avoid_pipelining to the smtp transport. + +PH/21 Long custom messages for fakedefer and fakereject are now split up + into multiline reponses in the same way that messages for "deny" and + other ACL rejections are. + +PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep, + with slight modification. + +PH/23 Applied sieve patches from the maintainer "tracking the latest notify + draft, changing the syntax and factoring some duplicate code". + +PH/24 When the log selector "outgoing_port" was set, the port was shown as -1 + for deliveries of the second and subsequent messages over the same SMTP + connection. + +PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and + ${reduce, with only minor "tidies". + +SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match. + +PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its + expansion side effects. + +PH/27 When a message times out after an over-quota error from an Exim-imposed + quota, the bounce message says "mailbox is full". This message was not + being given when it was a system quota that was exceeded. It now should + be the same. + +MH/03 Made $recipients available in local_scan(). local_scan() already has + better access to the recipient list through recipients_list[], but + $recipients can be useful in postmaster-provided expansion strings. + +PH/28 The $smtp_command and $smtp_command_argument variables were not correct + in the case of a MAIL command with additional options following the + address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings + were accidentally chopped off. + +PH/29 SMTP synchronization checks are implemented when a command is read - + there is a check that no more input is waiting when there shouldn't be + any. However, for some commands, a delay in an ACL can mean that it is + some time before the response is written. In this time, more input might + arrive, invalidly. So now there are extra checks after an ACL has run for + HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when + pipelining has not been advertised. + +PH/30 MH's patch to allow iscntrl() characters to be list separators. + +PH/31 Unlike :fail:, a custom message specified with :defer: was not being + returned in the SMTP response when smtp_return_error_details was false. + This has been fixed. + +PH/32 Change the Dovecot authenticator to use read() and write() on the socket + instead of the C I/O that was originally supplied, because problems were + reported on Solaris. + +PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in + Exim which did not show up earlier: it was assuming that a call to + SSL_CTX_set_info_callback() might give an error value. In fact, there is + no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback() + was a macro that became an assignment, so it seemed to work. This has + changed to a proper function call with a void return, hence the compile + error. Exim's code has been fixed. + +PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit + cpus. + +PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify". + +PH/36 Applied John Jetmore's patch to add -v functionality to exigrep. + +PH/37 If a message is not accepted after it has had an id assigned (e.g. + because it turns out to be too big or there is a timeout) there is no + "Completed" line in the log. When some messages of this type were + selected by exigrep, they were listed as "not completed". Others were + picked up by some special patterns. I have improved the selection + criteria to be more general. + +PH/38 The host_find_failed option in the manualroute router can now be set + to "ignore", to completely ignore a host whose IP address cannot be + found. If all hosts are ignored, the behaviour is controlled by the new + host_all_ignored option. + +PH/39 In a list of hosts for manualroute, if one item (either because of multi- + homing or because of multiple MX records with /mx) generated more than + one IP address, and the following item turned out to be the local host, + all the secondary addresses of the first item were incorrectly removed + from the list, along with the local host and any following hosts (which + is what is supposed to happen). + +PH/40 When Exim receives a message, it writes the login name, uid, and gid of + whoever called Exim into the -H file. In the case of the daemon it was + behaving confusingly. When first started, it used values for whoever + started the daemon, but after a SIGHUP it used the Exim user (because it + calls itself on a restart). I have changed the code so that it now always + uses the Exim user. + +PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a + message are rejected with the same error (e.g. no authentication or bad + sender address), and a DATA command is nevertheless sent (as can happen + with PIPELINING or a stupid MUA), the error message that was given to the + RCPT commands is included in the rejection of the DATA command. This is + intended to be helpful for MUAs that show only the final error to their + users. + +PH/42 Another patch from the Sieve maintainer. + +SC/02 Eximstats - Differentiate between permanent and temporary rejects. + Eximstats - Fixed some broken HTML links and added missing column headers + (Jez Hancock). + Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email + columns for Rejects, Temp Rejects, Ham, and Spam rows. + +SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables. + +PH/43 Yet another patch from the Sieve maintainer. + +PH/44 I found a way to check for a TCP/IP connection going away before sending + the response to the final '.' that terminates a message, but only in the + case where the client has not sent further data following the '.' + (unfortunately, this is allowed). However, in many cases there won't be + any further data because there won't be any more messages to send. A call + to select() can be used: if it shows that the input is "ready", there is + either input waiting, or the socket has been closed. An attempt to read + the next input character can distinguish the two cases. Previously, Exim + would have sent an OK response which the client would never have see. + This could lead to message repetition. This fix should cure that, at + least in a lot of common cases. + +PH/45 Do not advertise STARTTLS in response to HELP unless it would be + advertised in response to EHLO. + + +Exim version 4.66 +----------------- + +PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one + fixed by 4.65/MH/01 (is this a record?) are fixed: + + (i) An empty string was always treated as zero by the numeric comparison + operators. This behaviour has been restored. + + (ii) It is documented that the numeric comparison operators always treat + their arguments as decimal numbers. This was broken in that numbers + starting with 0 were being interpreted as octal. + + While fixing these problems I realized that there was another issue that + hadn't been noticed. Values of message_size_limit (both the global option + and the transport option) were treated as octal if they started with 0. + The documentation was vague. These values are now always treated as + decimal, and I will make that clear in the documentation. + + +Exim version 4.65 +----------------- + +TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with + Linux large file support (_FILE_OFFSET_BITS=64) on older glibc + versions. (#438) + +MH/01 Don't check that the operands of numeric comparison operators are + integers when their expansion is in "skipping" mode (fixes bug + introduced by 4.64-PH/07). + +PH/01 If a system filter or a router generates more than SHRT_MAX (32767) + child addresses, Exim now panics and dies. Previously, because the count + is held in a short int, deliveries were likely to be lost. As such a + large number of recipients for a single message is ridiculous + (performance will be very, very poor), I have chosen to impose a limit + rather than extend the field. + + +Exim version 4.64 +----------------- + +TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a + leftover -K file (the existence of which was triggered by #402). + While we were at it, introduced process PID as part of the -K + filename. This should rule out race conditions when creating + these files. + +TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing + processing considerably. Previous code took too long for large mails, + triggering a timeout which in turn triggers #401. + +TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used + in the DK code in transports.c. sendfile() is not really portable, + hence the _LINUX specificness. + +TF/01 In the add_headers option to the mail command in an Exim filter, + there was a bug that Exim would claim a syntax error in any + header after the first one which had an odd number of characters + in the field name. + +PH/01 If a server that rejects MAIL FROM:<> was the target of a sender + callout verification, Exim cached a "reject" for the entire domain. This + is correct for most verifications, but it is not correct for a recipient + verification with use_sender or use_postmaster set, because in that case + the callout does not use MAIL FROM:<>. Exim now distinguishes the special + case of MAIL FROM:<> rejection from other early rejections (e.g. + rejection of HELO). When verifying a recipient using a non-null MAIL + address, the cache is ignored if it shows MAIL FROM:<> rejection. + Whatever the result of the callout, the value of the domain cache is + left unchanged (for any other kind of callout, getting as far as trying + RCPT means that the domain itself is ok). + +PH/02 Tidied a number of unused variable and signed/unsigned warnings that + gcc 4.1.1 threw up. + +PH/03 On Solaris, an unexpectedly close socket (dropped connection) can + manifest itself as EPIPE rather than ECONNECT. When tidying away a + session, the daemon ignores ECONNECT errors and logs others; it now + ignores EPIPE as well. + +PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c + (quoted-printable decoding). + +PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and + later the small subsequent patch to fix an introduced bug. + +PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer. + +PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}. + +PH/08 An error is now given if message_size_limit is specified negative. + +PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables + to be given (somewhat) arbitrary names. + +JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced + in 4.64-PH/09. + +JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions, + miscellaneous code fixes + +PH/10 Added the log_reject_target ACL modifier to specify where to log + rejections. + +PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_ + hostname. This is wrong, because it relates to the incoming message (and + probably the interface on which it is arriving) and not to the outgoing + callout (which could be using a different interface). This has been + changed to use the value of the helo_data option from the smtp transport + instead - this is what is used when a message is actually being sent. If + there is no remote transport (possible with a router that sets up host + addresses), $smtp_active_hostname is used. + +PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various + tweaks were necessary in order to get it to work (see also 21 below): + (a) The code assumed that strncpy() returns a negative number on buffer + overflow, which isn't the case. Replaced with Exim's string_format() + function. + (b) There were several signed/unsigned issues. I just did the minimum + hacking in of casts. There is scope for a larger refactoring. + (c) The code used strcasecmp() which is not a standard C function. + Replaced with Exim's strcmpic() function. + (d) The code set only $1; it now sets $auth1 as well. + (e) A simple test gave the error "authentication client didn't specify + service in request". It would seem that Dovecot has changed its + interface. Fortunately there's a specification; I followed it and + changed what the client sends and it appears to be working now. + +PH/13 Added $message_headers_raw to provide the headers without RFC 2047 + decoding. + +PH/14 Corrected misleading output from -bv when -v was also used. Suppose the + address A is aliased to B and C, where B exists and C does not. Without + -v the output is "A verified" because verification stops after a + successful redirection if more than one address is generated. However, + with -v the child addresses are also verified. Exim was outputting "A + failed to verify" and then showing the successful verification for C, + with its parentage. It now outputs "B failed to verify", showing B's + parentage before showing the successful verification of C. + +PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to + look up a TXT record in a specific list after matching in a combined + list. + +PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and + RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when + they consult the DNS. I had assumed they would set it the way they + wanted; and indeed my experiments on Linux seem to show that in some + cases they do (I could influence IPv6 lookups but not IPv4 lookups). + To be on the safe side, however, I have now made the interface to + host_find_byname() similar to host_find_bydns(), with an argument + containing the DNS resolver options. The host_find_byname() function now + sets these options at its start, just as host_find_bydns() does. The smtp + transport options dns_qualify_single and dns_search_parents are passed to + host_find_byname() when gethostbyname=TRUE in this transport. Other uses + of host_find_byname() use the default settings of RES_DEFNAMES + (qualify_single) but not RES_DNSRCH (search_parents). + +PH/17 Applied (a modified version of) Nico Erfurth's patch to make + spool_read_header() do less string testing, by means of a preliminary + switch on the second character of optional "-foo" lines. (This is + overdue, caused by the large number of possibilities that now exist. + Originally there were few.) While I was there, I also converted the + str(n)cmp tests so they don't re-test the leading "-" and the first + character, in the hope this might squeeze out yet more improvement. + +PH/18 Two problems with "group" syntax in header lines when verifying: (1) The + flag allowing group syntax was set by the header_syntax check but not + turned off, possible causing trouble later; (2) The flag was not being + set at all for the header_verify test, causing "group"-style headers to + be rejected. I have now set it in this case, and also caused header_ + verify to ignore an empty address taken from a group. While doing this, I + came across some other cases where the code for allowing group syntax + while scanning a header line wasn't quite right (mostly, not resetting + the flag correctly in the right place). These bugs could have caused + trouble for malformed header lines. I hope it is now all correct. + +PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called + with the "reply" argument non-NULL. The code, however (which originally + came from elsewhere) had *some* tests for NULL when it wrote to *reply, + but it didn't always do it. This confused somebody who was copying the + code for some other use. I have removed all the tests. + +PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a + feature that was used to support insecure browsers during the U.S. crypto + embargo. It requires special client support, and Exim is probably the + only MTA that supported it -- and would never use it because real RSA is + always available. This code has been removed, because it had the bad + effect of slowing Exim down by computing (never used) parameters for the + RSA_EXPORT functionality. + +PH/21 On the advice of Timo Sirainen, added a check to the dovecot + authenticator to fail if there's a tab character in the incoming data + (there should never be unless someone is messing about, as it's supposed + to be base64-encoded). Also added, on Timo's advice, the "secured" option + if the connection is using TLS or if the remote IP is the same as the + local IP, and the "valid-client-cert option" if a client certificate has + been verified. + +PH/22 As suggested by Dennis Davis, added a server_condition option to *all* + authenticators. This can be used for authorization after authentication + succeeds. (In the case of plaintext, it servers for both authentication + and authorization.) + +PH/23 Testing for tls_required and lost_connection in a retry rule didn't work + if any retry times were supplied. + +PH/24 Exim crashed if verify=helo was activated during an incoming -bs + connection, where there is no client IP address to check. In this + situation, the verify now always succeeds. + +PH/25 Applied John Jetmore's -Mset patch. + +PH/26 Added -bem to be like -Mset, but loading a message from a file. + +PH/27 In a string expansion for a processed (not raw) header when multiple + headers of the same name were present, leading whitespace was being + removed from all of them, but trailing whitespace was being removed only + from the last one. Now trailing whitespace is removed from each header + before concatenation. Completely empty headers in a concatenation (as + before) are ignored. + +PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John + Jetmore). It would have mis-read ACL variables from pre-4.61 spool files. + +PH/29 [Removed. This was a change that I later backed out, and forgot to + correct the ChangeLog entry (that I had efficiently created) before + committing the later change.] + +PH/30 Exim was sometimes attempting to deliver messages that had suffered + address errors (4xx response to RCPT) over the same connection as other + messages routed to the same hosts. Such deliveries are always "forced", + so retry times are not inspected. This resulted in far too many retries + for the affected addresses. The effect occurred only when there were more + hosts than the hosts_max_try setting in the smtp transport when it had + the 4xx errors. Those hosts that it had tried were not added to the list + of hosts for which the message was waiting, so if all were tried, there + was no problem. Two fixes have been applied: + + (i) If there are any address or message errors in an SMTP delivery, none + of the hosts (tried or untried) are now added to the list of hosts + for which the message is waiting, so the message should not be a + candidate for sending over the same connection that was used for a + successful delivery of some other message. This seems entirely + reasonable: after all the message is NOT "waiting for some host". + This is so "obvious" that I'm not sure why it wasn't done + previously. Hope I haven't missed anything, but it can't do any + harm, as the worst effect is to miss an optimization. + + (ii) If, despite (i), such a delivery is accidentally attempted, the + routing retry time is respected, so at least it doesn't keep + hammering the server. + +PH/31 Installed Andrew Findlay's patch to close the writing end of the socket + in ${readsocket because some servers need this prod. + +PH/32 Added some extra debug output when updating a wait-xxx database. + +PH/33 The hint "could be header name not terminated by colon", which has been + given for certain expansion errors for a long time, was not being given + for the ${if def:h_colon_omitted{... case. + +PH/34 The spec says: "With one important exception, whenever a domain list is + being scanned, $domain contains the subject domain." There was at least + one case where this was not true. + +PH/35 The error "getsockname() failed: connection reset by peer" was being + written to the panic log as well as the main log, but it isn't really + panic-worthy as it just means the connection died rather early on. I have + removed the panic log writing for the ECONNRESET error when getsockname() + fails. + +PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue + runs only) independently of the message's sender address. This meant + that, if the 4xx error was in fact related to the sender, a different + message to the same recipient with a different sender could confuse + things. In particualar, this can happen when sending to a greylisting + server, but other circumstances could also provoke similar problems. + I have changed the default so that the retry time for these errors is now + based a combination of the sender and recipient addresses. This change + can be overridden by setting address_retry_include_sender=false in the + smtp transport. + +PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the + remote server are returned as part of bounce messages. This was not + happening for LMTP over a pipe (the lmtp transport), but now it is the + same for both kinds of LMTP. + +PH/38 Despite being documented as not happening, Exim was rewriting addresses + in header lines that were in fact CNAMEs. This is no longer the case. + +PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored, + and queue runs started by the daemon processed all messages. This has + been fixed so that -R and -S can now usefully be given with -q<time>. + +PH/40 Import PCRE release 6.7 (fixes some bugs). + +PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch). + +PH/42 Give an error if -q is specified more than once. + +PH/43 Renamed the variables $interface_address and $interface_port as + $received_ip_address and $received_port, to make it clear that these + values apply to message reception, and not to the outgoing interface when + a message is delivered. (The old names remain recognized, of course.) + +PH/44 There was no timeout on the connect() call when using a Unix domain + socket in the ${readsocket expansion. There now is. + +PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to + be meaningful with "accept". + +SC/01 Eximstats V1.43 + Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear. + +SC/02 Eximstats V1.44 + Use a glob alias rather than an array ref in the generated + parser. This improves both readability and performance. + +SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell) + Collect SpamAssassin and rejection statistics. + Don't display local sender or destination tables unless + there is data to show. + Added average volumes into the top table text output. + +SC/04 Eximstats V1.46 + Collect data on the number of addresses (recipients) + as well as the number of messages. + +SC/05 Eximstats V1.47 + Added 'Message too big' to the list of mail rejection + reasons (thanks to Marco Gaiarin). + +SC/06 Eximstats V1.48 + Mainlog lines which have GMT offsets and are too short to + have a flag are now skipped. + +SC/07 Eximstats V1.49 (Alain Williams) + Added the -emptyok flag. + +SC/08 Eximstats V1.50 + Fixes for obtaining the IP address from reject messages. + +JJ/03 exipick.20061117.2, made header handling as similar to exim as possible + (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed + whitesspace changes from 4.64-PH/27 + +JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to + match 4.64-PH/13 + +JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria + are found, allow negative numbers in numeric criteria) + +JJ/06 exipick.20061117.2, added new $message_body_missing variable + +JJ/07 exipick.20061117.2, added $received_ip_address and $received_port + to match changes made in 4.64-PH/43 + +PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm. + +PH/47 Put in an explicit test for a DNS lookup of an address record where the + "domain" is actually an IP address, and force a failure. This locks out + those revolvers/nameservers that support "A-for-A" lookups, in + contravention of the specifications. + +PH/48 When a host name was looked up from an IP address, and the subsequent + forward lookup of the name timed out, the host name was left in + $sender_host_name, contrary to the specification. + +PH/49 Although default lookup types such as lsearch* or cdb*@ have always been + restricted to single-key lookups, Exim was not diagnosing an error if + * or *@ was used with a query-style lookup. + +PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024. + +MH/01 local_scan ABI version incremented to 1.1. It should have been updated + long ago, but noone interested enough thought of it. Let's just say that + the "1.1" means that there are some new functions that weren't there at + some point in the past. + +PH/51 Error processing for expansion failure of helo_data from an smtp + transport during callout processing was broken. + +PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be + tested/used via the -bh/-bhc/-bs options. + +PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE + bug, fixed in subsequent PCRE releases). + +PH/54 Applied Robert Bannocks' patch to avoid a problem with references that + arises when using the Solaris LDAP libraries (but not with OpenLDAP). + +PH/55 Check for a ridiculously long file name in exim_dbmbuild. + + +Exim version 4.63 +----------------- + +SC/01 Use a glob alias rather than an array ref in eximstats generated + parser. This improves both readability and performance. + +SC/02 Collect SpamAssassin and rejection statistics in eximstats. + Don't display local sender or destination tables in eximstats unless + there is data to show. + Added average volumes into the eximstats top table text output. + +SC/03 Collect data on the number of addresses (recipients) as well + as the number of messages in eximstats. + +TF/01 Correct an error in the documentation for the redirect router. Exim + does (usually) call initgroups() when daemonizing. + +TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs + with consistent privilege compared to when running as a daemon. + +TF/03 Note in the spec that $authenticated_id is not set for local + submissions from trusted users. + +TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp. + Thanks to Dean Brooks <dean@iglou.com> for the patch. + +TF/05 Make it easier to get SMTP authentication and TLS/SSL support working + by adding some example configuration directives to the default + configuration file. A little bit of work is required to uncomment the + directives and define how usernames and passwords are checked, but + there is now a framework to start from. + +PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old" + functions that Exim currently uses aren't defined in ldap.h for OpenLDAP + without this. I don't know how relevant this is to other LDAP libraries. + +PH/02 Add the verb name to the "unknown ACL verb" error. + +PH/03 Magnus Holmgren's patch for filter_prepend_home. + +PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work. + +PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home + directory not expanded when it should be if an expanded home directory + was set for the address (which is overridden by the transport). + +PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with + libradius. + +PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the + bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL, + because it is too late at that time, and has no effect. + +PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a + security issue with \' (bugzilla #107). I could not use the + PQescapeStringConn() function, because it needs a PGconn value as one of + its arguments. + +PH/08 When testing addresses using -bt, indicate those final addresses that + are duplicates that would not cause an additional delivery. At least one + person was confused, thinking that -bt output corresponded to deliveries. + (Suppressing duplicates isn't a good idea as you lose the information + about possibly different redirections that led to the duplicates.) + +PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on + systems where poll() doesn't work, in particular OS X. + +PH/10 Added more information to debugging output for retry time not reached. + +PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read + operations in malware.c. + +PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys + signatures. + +PH/13 If write_rejectlog was set false when logging was sent to syslog with + syslog_duplication set false, log lines that would normally be written + both the the main log and to the reject log were not written to syslog at + all. + +PH/14 In the default configuration, change the use of "message" in ACL warn + statements to "add_header". + +PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not + not followed by a command (e.g. "seen endif"). + +PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail: + and :defer: in a redirect router. Add forbid_smtp_code to suppress the + latter. + +PH/17 Added extra conditions to the default value of delay_warning_condition + so that it is now: + + ${if or { \ + { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \ + { match{$h_precedence:}{(?i)bulk|list|junk} } \ + { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \ + }{no}{yes}} + + The Auto-Submitted: and various List- headers are standardised, whereas I + don't think Precedence: ever was. + +PH/18 Refactored debugging code in route_finduser() to show more information, + in particular, the error code if getpwnam() issues one. + +PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module. + This is apparently needed in addition to the PH/07 change above to avoid + any possible encoding problems. + +PH/20 Perl can change the locale. Exim was resetting it after a ${perl call, + but not after initializing Perl. + +PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and + output them only if debugging. By default they are written stderr, + apparently, which is not desirable. + +PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on + queries. + +JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and + --not options + +JJ/02 exipick: rewrote --help documentation to hopefully make more clear. + +PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is + authenticated or an ident call has been made. Suppress the default + values for $authenticated_id and $authenticated_sender (but permit -oMai + and -oMas) when testing with -bh. + +PH/24 Re-jigged the order of the tests in the default configuration so that the + tests for valid domains and recipients precede the DNS black list and CSA + tests, on the grounds that those ones are more expensive. + +PH/25 Exim was not testing for a space following SMTP commands such as EHLO + that require one. Thus, EHLORHUBARB was interpreted as a valid command. + This bug exists in every version of Exim that I still have, right back to + 0.12. + +PH/26 (n)wildlsearch lookups are documented as being done case-insensitively. + However, an attempt to turn on case-sensitivity in a regex key by + including (?-i) didn't work because the subject string was already + lowercased, and the effects were non-intuitive. It turns out that a + one-line patch can be used to allow (?-i) to work as expected. + + +Exim version 4.62 +----------------- + +TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst + other effects) broke the use of negated acl sub-conditions. + +PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore + patch). + +PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow". + "Deny" causes Exim to reject the incoming connection with a 554 error. + Unfortunately, if there is a major crisis, such as a disk failure, + tcp-wrappers gives "deny", whereas what one would like would be some + kind of temporary error. A kludge has been added to help with this. + Before calling hosts_ctl(), errno is set zero. If the result is "deny", a + 554 error is used if errno is still zero or contains ENOENT (which occurs + if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a + 451 error is used. + +PH/03 Add -lutil to the default FreeBSD LIBS setting. + +PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host + errors. Otherwise a message that provokes a temporary error (when other + messages do not) can cause a whole host to time out. + +PH/05 Batch deliveries by appendfile and pipe transports did not work when the + addresses were routed directly to files or pipes from a redirect router. + File deliveries just didn't batch; pipe deliveries might have suffered + odd errors. + +PH/06 A failure to get a lock for a hints database would erroneously always say + "Failed to get write lock", even when it was really a read lock. + +PH/07 The appendfile transport was creating MBX lock files with a fixed mode + of 0600. This has been changed to use the value of the lockfile_mode + option (which defaults to 0600). + +PH/08 Applied small patch from the Sieve maintainer. + +PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash + folder from quota calculations, a direct delivery into this folder messed + up the contents of the maildirsize file. This was because the regex was + used only to exclude .Trash (or whatever) when the size of the mailbox + was calculated. There was no check that a delivery was happening into an + excluded directory. This bug has been fixed by ignoring all quota + processing for deliveries into excluded directories. + +PH/10 Added the maildirfolder_create_regex option to appendfile. + + +Exim version 4.61 +----------------- + +PH/01 The code for finding all the local interface addresses on a FreeBSD + system running IPv6 was broken. This may well have applied to all BSD + systems, as well as to others that have similar system calls. The broken + code found IPv4 interfaces correctly, but gave incorrect values for the + IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was + that it would not match correctly against @[] and not recognize the IPv6 + addresses as local. + +PH/02 The ipliteral router was not recognizing addresses of the form user@ + [ipv6:....] because it didn't know about the "ipv6:" prefix. + +PH/03 Added disable_ipv6. + +PH/04 Changed $reply_address to use the raw form of the headers instead of the + decoded form, because it is most often used to construct To: headers + lines in autoreplies, and the decoded form may well be syntactically + invalid. However, $reply_address has leading white space removed, and all + newlines turned into spaces so that the autoreply transport does not + grumble. + +PH/05 If group was specified without a user on a router, and no group or user + was specified on a transport, the group from the router was ignored. + +PH/06 Increased the number of ACL variables to 20 of each type, and arranged + for visible compile-time settings that can be used to change these + numbers, for those that want even more. Backwards compatibility with old + spool files has been maintained. However, going back to a previous Exim + release will lost any variables that are in spool files. + +PH/07 Two small changes when running in the test harness: increase delay when + passing a TCP/IP connection to a new process, in case the original + process has to generate a bounce, and remove special handling of + 127.0.0.2 (sic), which is no longer necessary. + +PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to + be the same on different OS. + +PH/09 Moved a debug statement in filter processing to avoid a race problem when + testing. + +JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:" + whether --show-vars was specified or not + +JJ/02 exipick: Added support for new ACL variable spool format introduced + in 4.61-PH/06 + +PH/10 Fixed another bug related to PH/04 above: if an incoming message had a + syntactically invalid From: or Reply-to: line, and a filter used this to + generate an autoreply, and therefore failed to obtain an address for the + autoreply, Exim could try to deliver to a non-existent relative file + name, causing unrelated and misleading errors. What now happens is that + it logs this as a hard delivery error, but does not attempt to create a + bounce message. + +PH/11 The exinext utility has a -C option for testing purposes, but although + the given file was scanned by exinext itself; it wasn't being passed on + when Exim was called. + +PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as + an end-of-file indication when reading a command response. + +PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was + compiled. In many other places in Exim, IPv6 addresses are always + recognized, so I have changed this. It also means that IPv4 domain + literals of the form [IPV4:n.n.n.n] are now always recognized. + +PH/14 When a uid/gid is specified for the queryprogram router, it cannot be + used if the router is not running as root, for example, when verifying at + ACL time, or when using -bh. The debugging output from this situation was + non-existent - all you got was a failure to exec. I have made two + changes: + + (a) Failures to set uid/gid, the current directory, or a process leader + in a subprocess such as that created by queryprogram now generate + suitable debugging ouput when -d is set. + + (b) The queryprogram router detects when it is not running as root, + outputs suitable debugging information if -d is set, and then runs + the subprocess without attempting to change uid/gid. + +PH/15 Minor change to Makefile for building test_host (undocumented testing + feature). + +PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the + additional section of a DNS packet that returns MX or SRV records. + Instead, it always explicitly searches for A/AAAA records. This avoids + major problems that occur when a DNS server includes only records of one + type (A or AAAA) in an MX/SRV packet. A byproduct of this change has + fixed another bug: if SRV records were looked up and the corresponding + address records were *not* found in the additional section, the port + values from the SRV records were lost. + +PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not + using the correct key (the original address) when searching the retry + rules in order to find which one to use for generating the retry hint. + +PH/18 If quota_warn_message contains a From: header, Exim now refrains from + adding the default one. Similarly, if it contains a Reply-To: header, the + errors_reply_to option, if set, is not used. + +PH/19 When calculating a retry time, Exim used to measure the "time since + failure" by looking at the "first failed" field in the retry record. Now + it does not use this if it is later than than the arrival time of the + message. Instead it uses the arrival time. This makes for better + behaviour in cases where some deliveries succeed, thus re-setting the + "first failed" field. An example is a quota failure for a huge message + when small messages continue to be delivered. Without this change, the + "time since failure" will always be short, possible causing more frequent + delivery attempts for the huge message than are intended. + [Note: This change was subsequently modified - see PH/04 for 4.62.] + +PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as + $1, $2, $3) because the numerical variables can be reset during some + expansion items (e.g. "match"), thereby losing the authentication data. + +PH/21 Make -bV show the size of off_t variables so that the test suite can + decide whether to run tests for quotas > 2G. + +PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold, + mailbox_size, and mailbox_filecount in the appendfile transport. If a + filecount value is greater than 2G or if a quota value is greater than 2G + on a system where the size of off_t is not greater than 4, a panic error + is given. + +PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can + never match. The debug and -bh output now contains an explicit error + message indicating a malformed IPv4 address or mask. + +PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address + 1.2.3.4 without a mask. Now it is not recognized as an IP address, and + PH/23 above applies. + +PH/25 Do not write to syslog when running in the test harness. The only + occasion when this arises is a failure to open the main or panic logs + (for which there is an explicit test). + +PH/26 Added the /no_tell option to "control=freeze". + +PH/27 If a host name lookup failed very early in a connection, for example, if + the IP address matched host_lookup and the reverse lookup yielded a name + that did not have a forward lookup, an error message of the form "no IP + address found for host xxx.xxx.xxx (during SMTP connection from NULL)" + could be logged. Now it outputs the IP address instead of "NULL". + +PH/28 An enabling patch from MH: add new function child_open_exim2() which + allows the sender and the authenticated sender to be set when + submitting a message from within Exim. Since child_open_exim() is + documented for local_scan(), the new function should be too. + +PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being + ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that + results in an empty string is now treated as unset. + +PH/30 Fix eximon buffer overflow bug (Bugzilla #73). + +PH/31 Added sender_verify_fail logging option. + +PH/32 In November 2003, the code in Exim that added an empty Bcc: header when + needed by RFC 822 but not by RFC 2822 was commented out. I have now + tidied the source and removed it altogether. + +PH/33 When a queue run was abandoned because the load average was too high, a + log line was always written; now it is written only if the queue_run log + selector is set. In addition, the log line for abandonment now contains + information about the queue run such as the pid. This is always present + in "start" and "stop" lines but was omitted from the "abandon" line. + +PH/34 Omit spaces between a header name and the colon in the error message that + is given when verify = headers_syntax fails (if there are lots of them, + the message gets confusing). + +PH/35 Change the default for dns_check_names_pattern to allow slashes within + names, as there are now some PTR records that contain slashes. This check + is only to protect against broken name servers that fall over on strange + characters, so the fact that it applies to all lookups doesn't matter. + +PH/36 Now that the new test suite is complete, we can remove some of the + special code in Exim that was needed for the old test suite. For example, + sorting DNS records because real resolvers return them in an arbitrary + order. The new test suite's fake resolver always returns records in the + same order. + +PH/37 When running in the test harness, use -odi for submitted messages (e.g. + bounces) except when queue_only is set, to avoid logging races between + the different processes. + +PH/38 Panic-die if .include specifies a non-absolute path. + +PH/39 A tweak to the "H" retry rule from its user. + +JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified + a label. They prevented compilation on older perls. + +JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused + a warning to be raised on newish perls. + +JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages + on queue. Changes to match documented behaviour of showing count of + messages matching specified criteria. + +PH/40 Changed the default ident timeout from 30s to 5s. + +PH/41 Added support for the use of login_cap features, on those BSD systems + that have them, for controlling the resources used by pipe deliveries. + +PH/42 The content-scanning code uses fopen() to create files in which to put + message data. Previously it was not paying any attention to the mode of + the files. Exim runs with umask(0) because the rest of the code creates + files with open(), and sets the required mode explicitly. Thus, these + files were ending up world-writeable. This was not a big issue, because, + being within the spool directory, they were not world-accessible. I have + created a function called modefopen, which takes an additional mode + argument. It sets umask(777), creates the file, chmods it to the required + mode, then resets the umask. All the relevant calls to fopen() in the + content scanning code have been changed to use this function. + +PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset + to 24 hours. This avoids potential overflow problems when processing G + and H retry rules. I suspect nobody ever tinkers with this value. + +PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile. + +PH/45 When the plaintext authenticator is running as a client, the server's + challenges are checked to ensure they are valid base64 strings. By + default, the authentication attempt is cancelled if an invalid string is + received. Setting client_ignore_invalid_base64 true ignores these errors. + The decoded challenge strings are now placed in $auth1, $auth2, etc. as + they are received. Thus, the responses can be made to depend on the + challenges. If an invalid string is ignored, an empty string is placed in + the variable. + +PH/46 Messages that are created by the autoreply transport now contains a + References: header, in accordance with RFCs 2822 and 3834. + +PH/47 Added authenticated_sender_force to the smtp transport. + +PH/48 The ${prvs expansion was broken on systems where time_t was long long. + +PH/49 Installed latest patch from the Sieve maintainer. + +PH/50 When an Exim quota was set without a file count quota, and mailbox_size + was also set, the appendfile transport was unnecessarily scanning a + directory of message files (e.g. for maildir delivery) to find the count + of files (along with the size), even though it did not need this + information. It now does the scan only if it needs to find either the + size of the count of files. + +PH/51 Added ${time_eval: to convert Exim time strings into seconds. + +PH/52 Two bugs concerned with error handling when the smtp transport is + used in LMTP mode: + + (i) Exim was not creating retry information for temporary errors given + for individual recipients after the DATA command when the smtp transport + was used in LMTP mode. This meant that they could be retried too + frequently, and not timed out correctly. + + (ii) Exim was setting the flag that allows error details to be returned + for LMTP errors on RCPT commands, but not for LMTP errors for individual + recipients that were returned after the DATA command. + +PH/53 This is related to PH/52, but is more general: for any failing address, + when detailed error information was permitted to be returned to the + sender, but the error was temporary, then after the final timeout, only + "retry timeout exceeded" was returned. Now it returns the full error as + well as "retry timeout exceeded". + +PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that + do this, and (what is worse) MTAs that accept it. + +PH/55 Added the add_header modified to ACLs. The use of "message" with "warn" + will now be deprecated. + +PH/56 New os.c-cygwin from the Cygwin maintainer. + +JJ/06 exipick: added --unsorted option to allow unsorted output in all output + formats (previously only available in exim formats via -bpr, -bpru, + and -bpra. Now also available in native and exiqgrep formats) + +JJ/07 exipick: added --freeze and --thaw options to allow faster interaction + with very large, slow to parse queues + +JJ/08 exipick: added ! as generic prefix to negate any criteria format + +JJ/09 exipick: miscellaneous performance enhancements (~24% improvements) + +PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing + responses to authentication challenges, though it was showing the + challenges; (ii) I've removed the CR characters from the debug output for + SMTP output lines. + +PH/58 Allow for the insertion of a newline as well as a space when a string + is turned into more than one encoded-word during RFC 2047 encoding. The + Sieve code now uses this. + +PH/59 Added the following errors that can be detected in retry rules: mail_4xx, + data_4xx, lost_connection, tls_required. + +PH/60 When a VRFY deferred or FAILED, the log message rather than the user + message was being sent as an SMTP response. + +PH/61 Add -l and -k options to exicyclog. + +PH/62 When verifying, if an address was redirected to one new address, so that + verification continued, and the new address failed or deferred after + having set something in $address_data, the value of $address_data was not + passed back to the ACL. This was different to the case when no + redirection occurred. The value is now passed back in both cases. + +PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to + HAVE_SETCLASSRESOURCES because there are different APIs in use that all + use login_cap.h, so on its own it isn't the distinguishing feature. The + new name refers directly to the setclassresources() function. + +PH/65 Added configuration files for NetBSD3. + +PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11. + +PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6 + is preferred over IPv4. + +PH/68 The bounce_return_message and bounce_return_body options were not being + honoured for bounces generated during the reception of non-SMTP messages. + In particular, this applied to messages rejected by the ACL. This bug has + been fixed. However, if bounce_return_message is true and bounce_return_ + body is false, the headers that are returned for a non-SMTP message + include only those that have been read before the error was detected. + (In the case of an ACL rejection, they have all been read.) + +PH/69 The HTML version of the specification is now built in a directory called + spec_html instead of spec.html, because the latter looks like a path with + a MIME-type, and this confuses some software. + +PH/70 Catch two compiler warnings in sieve.c. + +PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The + function verify_get_ident() calls ip_connect() to connect a socket, but + if the "connect()" function timed out, ip_connect() used to close the + socket. However, verify_get_ident() also closes the socket later, and in + between Exim writes to the log, which may get opened at this point. When + the socket was closed in ip_connect(), the log could get the same file + descriptor number as the socket. This naturally causes chaos. The fix is + not to close the socket in ip_connect(); the socket should be closed by + the function that creates it. There was only one place in the code where + this was missing, in the iplookup router, which I don't think anybody now + uses, but I've fixed it anyway. + +PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as + well as to direct DNS lookups. Otherwise the handling of names in host + lists is inconsistent and therefore confusing. + + +Exim version 4.60 +----------------- + +PH/01 Two changes to the default runtime configuration: + + (1) Move the checks for relay_from_hosts and authenticated clients from + after to before the (commented out) DNS black list checks. + + (2) Add control=submission to the relay_from_hosts and authenticated + clients checks, on the grounds that messages accepted by these + statements are most likely to be submissions. + +PH/02 Several tidies to the handling of ${prvs and ${prvscheck: + + (1) Generate an error if the third argument for the ${prvs expansion is + not a single digit. + + (2) Treat a missing third argument of ${prvscheck as if it were an empty + string. + + (3) Reset the variables that are obtained from the first argument of + ${prvscheck and used in the second argument before leaving the code, + because their memory is reclaimed, so using them afterwards may do + silly things. + + (4) Tidy up the code for expanding the arguments of ${prvscheck one by + one (it's much easier than Tom thought :-). + + (5) Because of (4), we can now allow for the use of $prvscheck_result + inside the third argument. + +PH/03 For some reason, the default setting of PATH when running a command from + a pipe transport was just "/usr/bin". I have changed it to + "/bin:/usr/bin". + +PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause + anything to be listed in the output from -bV. + +PH/05 When a filter generated an autoreply, the entire To: header line was + quoted in the delivery log line, like this: + + => >A.N.Other <ano@some.domain> <original@ddress> ... + + This has been changed so that it extracts the operative address. There + may be more than one such address. If so, they are comma-separated, like + this: + + => >ano@some.domain,ona@other.domain <original@ddress> ... + +PH/06 When a client host used a correct literal IP address in a HELO or EHLO + command, (for example, EHLO [1.2.3.4]) and the client's IP address was + not being looked up in the rDNS to get a host name, Exim was showing the + IP address twice in Received: lines, even though the IP addresses were + identical. For example: + + Received: from [1.2.3.4] (helo=[1.2.3.4]) + + However, if the real host name was known, it was omitting the HELO data + if it matched the actual IP address. This has been tidied up so that it + doesn't show the same IP address twice. + +PH/07 When both +timestamp and +memory debugging was on, the value given by + $tod_xxx expansions could be wrong, because the tod_stamp() function was + called by the debug printing, thereby overwriting the timestamp buffer. + Debugging no longer uses the tod_stamp() function when +timestamp is set. + +PH/08 When the original message was included in an autoreply transport, it + always said "this is a copy of the message, including all the headers", + even if body_only or headers_only was set. It now gives an appropriate + message. + +PH/09 Applied a patch from the Sieve maintainer which: + + o fixes some comments + o adds the (disabled) notify extension core + o adds some debug output for the result of if/elsif tests + o points to the current vacation draft in the documentation + and documents the missing references header update + + and most important: + + o fixes a bug in processing the envelope test (when testing + multiple envelope elements, the last element determinted the + result) + +PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to + Electronic Mail") by including: + + Auto-submitted: auto-generated + + in the messages that it generates (bounce messages and others, such as + warnings). In the case of bounce messages for non-SMTP mesages, there was + also a typo: it was using "Auto_submitted" (underscore instead of + hyphen). Since every message generated by Exim is necessarily in response + to another message, thes have all been changed to: + + Auto-Submitted: auto-replied + + in accordance with these statements in the RFC: + + The auto-replied keyword: + + - SHOULD be used on messages sent in direct response to another + message by an automatic process, + + - MUST NOT be used on manually-generated messages, + + - MAY be used on Delivery Status Notifications (DSNs) and Message + Disposition Notifications (MDNs), + + - MUST NOT be used on messages generated by automatic or periodic + processes, except for messages which are automatic responses to + other messages. + +PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}" + to the default Received: header definition. + +PH/12 Added log selector acl_warn_skipped (default on). + +PH/13 After a successful wildlsearch lookup, discard the values of numeric + variables because (a) they are in the wrong storage pool and (b) even if + they were copied, it wouldn't work properly because of the caching. + +PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length + checking when decoding. Apparently there are clients that generate + overlong encoded strings. Why am I not surprised? + +PH/15 If the first argument of "${if match_address" was not empty, but did not + contain an "@" character, Exim crashed. Now it writes a panic log message + and treats the condition as false. + +PH/16 In autoreply, treat an empty string for "once" the same as unset. + +PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve + extension "envelope-auth". The code is finished and in agreement with + other implementations, but there is no documentation so far and in fact, + nobody wrote the draft yet. This extension is currently #undef'ed, thus + not changing the active code. + + Print executed "if" and "elsif" statements when debugging is used. This + helps a great deal to understand what a filter does. + + Document more things not specified clearly in RFC3028. I had all this + sorted out, when out of a sudden new issues came to my mind. Oops." + +PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists + (Bugzilla #53). + +PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated + canonical form (as documented). However, after a host name lookup from + the IP address, check_host() was doing a simple string comparison with + addresses acquired from the DNS when checking that the found name did + have the original IP as one of its addresses. Since any found IPv6 + addresses are likely to be in abbreviated form, the comparison could + fail. Luckily, there already exists a function for doing the comparison + by converting both addresses to binary, so now that is used instead of + the text comparison. + +PH/20 There was another similar case to PH/19, when a complete host name was + given in a host list; looking up its IP address could give an abbreviated + form, whereas the current host's name might or might not be abbreviated. + The same fix has been applied. + + +Exim version 4.54 +----------------- + +PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was + set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not. + It now does. + +PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on + the CVS lines, and there was a missing #if HAVE_IPV6 in host.c. + +PH/03 Typo: missing ".o" in src/pcre/Makefile. + +PH/04 Tighten up "personal" tests: Instead of testing for any "List-" + header line, restrict the check to what is listed in RFCs 2369 and 2929. + Also, for "Auto-Submitted", treat anything other than "no" as + non-personal, in accordance with RFC 3834. (Previously it treated + anything starting "auto-" as non-personal.) + +TF/01 The control=submission/name=... option had a problem with syntax + errors if the name included a slash character. The /name= option + now slurps the rest of the string, so it can include any characters + but it must come last in the list of options (after /sender_retain + or /domain=). + +PH/05 Some modifications to the interface to the fake nameserver for the new + testing suite. + + + Exim version 4.53 ----------------- @@ -167,6 +1658,63 @@ PH/40 RM_COMMAND is now used in the building process. PH/41 Added a "distclean" target to the top-level Makefile; it deletes all the "build-* directories that it finds. +PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP + address in a domain literal was a prefix of an interface address. + +PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains + when verifying a sender address, unless rewrite_headers is false. + +PH/44 Wrote a long comment about why errors_to addresses are verified as + recipients, not senders. + +TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when + the ratelimit ACL was added. + +PH/45 Added $smtp_command for the full command (cf $smtp_command_argument). + +PH/46 Added extra information about PostgreSQL errors to the error string. + +PH/47 Added an interface to a fake DNS resolver for use by the new test suite, + avoiding the need to install special zones in a real server. This is + backwards compatible; if it can't find the fake resolver, it drops back. + Thus, both old and new test suites can be run. + +TF/02 Added util/ratelimit.pl + +TF/03 Minor fix to the ratelimit code to improve its behaviour in case the + clock is set back in time. + +TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian + Candler <B.Candler@pobox.com>. + +TF/05 The fix for PH/43 was not completely correct; widen_domains is always + OK for addresses that are the result of redirections. + +PH/48 A number of further additions for the benefit of the new test suite, + including a fake gethostbyname() that interfaces to the fake DNS resolver + (see PH/47 above). + +TF/06 The fix for widen_domains has also been applied to qualify_single and + search_parents which are the other dnslookup options that can cause + header rewrites. + +PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter + type ("H"). + +PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable. + +TF/07 Exim produced the error message "an SRV record indicated no SMTP + service" if it encountered an MX record with an empty target hostname. + The message is now "an MX or SRV record indicated no SMTP service". + +TF/08 Change PH/13 introduced the possibility that verify=helo may defer, + if the DNS of the sending site is misconfigured. This is quite a + common situation. This change restores the behaviour of treating a + helo verification defer as a failure. + +PH/51 If self=fail was set on a router, the bounce message did not include the + actual error message. + Exim version 4.52 -----------------