X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/14aa5a05b6399f98744f9542765288313d0bfb9d..328895cc07b8caf8c18003569431a02129989289:/doc/doc-txt/NewStuff

diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff
index 263df8776..95a207516 100644
--- a/doc/doc-txt/NewStuff
+++ b/doc/doc-txt/NewStuff
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-txt/NewStuff,v 1.112 2006/10/02 13:38:18 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/NewStuff,v 1.119 2006/10/24 12:56:06 ph10 Exp $
 
 New Features in Exim
 --------------------
@@ -61,15 +61,99 @@ Version 4.64
    several authenticators for different mechanisms. For example:
 
      dovecot_plain:
-       driver = PLAIN
+       driver = dovecot
+       public_name = PLAIN
        server_name = /var/run/dovecot/auth-client
        server_setid = $auth1
 
      dovecot_ntlm:
-       driver = NTLM
+       driver = dovecot
+       public_name = NTLM
        server_name = /var/run/dovecot/auth-client
        server_setid = $auth1
 
+   If the SMTP connection is encrypted, or if $sender_host_address is equal to
+   $interface_address (that is, the connection is local), the "secured" option
+   is passed in the Dovecot authentication command. If, for a TLS connection, a
+   client certificate has been verified, the "valid-client-cert" option is
+   passed.
+
+4. The variable $message_headers_raw provides a concatenation of all the
+   messages's headers without any decoding. This is in contrast to
+   $message_headers, which does RFC2047 decoding on the header contents.
+
+5. In a DNS black list, when the facility for restricting the matching IP
+   values is used, the text from the TXT record that is set in $dnslist_text
+   may not reflect the true reason for rejection. This happens when lists are
+   merged and the IP address in the A record is used to distinguish them;
+   unfortunately there is only one TXT record. One way round this is not to use
+   merged lists, but that can be inefficient because it requires multiple DNS
+   lookups where one would do in the vast majority of cases when the host of
+   interest is not on any of the lists.
+
+   A less inefficient way of solving this problem has now been implemented. If
+   two domain names, comma-separated, are given, the second is used first to do
+   an initial check, making use of any IP value restrictions that are set. If
+   there is a match, the first domain is used, without any IP value
+   restrictions, to get the TXT record. As a byproduct of this, there is also a
+   check that the IP being tested is indeed on the first list. The first domain
+   is the one that is put in $dnslist_domain. For example:
+
+     reject message  = rejected because $sender_ip_address is blacklisted \
+                       at $dnslist_domain\n$dnslist_text
+            dnslists = sbl.spamhaus.org,sbl-xbl.spamhaus.org=127.0.0.2 : \
+                       dul.dnsbl.sorbs.net,dnsbl.sorbs.net=127.0.0.10
+
+   For the first blacklist item, this starts by doing a lookup in
+   sbl-xbl.spamhaus.org and testing for a 127.0.0.2 return. If there is a
+   match, it then looks in sbl.spamhaus.org, without checking the return value,
+   and as long as something is found, it looks for the corresponding TXT
+   record. If there is no match in sbl-xbl.spamhaus.org, nothing more is done.
+   The second blacklist item is processed similarly.
+
+   If you are interested in more than one merged list, the same list must be
+   given several times, but because the results of the DNS lookups are cached,
+   the DNS calls themselves are not repeated. For example:
+
+     reject dnslists = http.dnsbl.sorbs.net,dnsbl.sorbs.net=127.0.0.2 : \
+                      socks.dnsbl.sorbs.net,dnsbl.sorbs.net=127.0.0.3 : \
+                       misc.dnsbl.sorbs.net,dnsbl.sorbs.net=127.0.0.4 : \
+                        dul.dnsbl.sorbs.net,dnsbl.sorbs.net=127.0.0.10
+
+   In this case there is a lookup in dnsbl.sorbs.net, and if none of the IP
+   values matches (or if no record is found), this is the only lookup that is
+   done. Only if there is a match is one of the more specific lists consulted.
+
+6. All authenticators now have a server_condition option. Previously, only
+   plaintext had this, and this has not changed: it must be set to the
+   authenticator as a server. For the others, if server_condition is set, it is
+   expanded if authentication is successful, and treated exactly as it is in
+   plaintext. This can serve as a means of adding authorization to an
+   authenticator.
+
+7. There is a new command-line option called -Mset. It is useful only in
+   conjunction with -be (that is, when testing string expansions). It must be
+   followed by a message id; Exim loads the given message from its spool before
+   doing the expansions, thus setting message-specific variables such as
+   $message_size and the header variables. The $recipients variable is
+   available. This feature is provided to make it easier to test expansions
+   that make use of these variables. However, Exim must be called by an admin
+   user when -Mset is used.
+
+8. Another similar new command-line option is called -bem. It operates like -be
+   except that it must be followed by the name of a file. For example:
+
+     exim -bem /tmp/testmessage
+
+   The file is read as a message (as if receiving a locally-submitted non-SMTP
+   message) before any of the test expansions are done. Thus, message-specific
+   variables such as $message_size and $h_from: are available. However, no
+   Received: header is added to the message. If the -t option is set,
+   recipients are read from the headers in the normal way, and are shown in the
+   $recipients variable. Note that recipients cannot be given on the command
+   line, because further arguments are taken as strings to expand (just like
+   -be).
+
 
 Version 4.63
 ------------