X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/056eb8b5a3811ee8246439d2211d38a43ee4984a..2fe1a124e7e7f496b39d9f348403dd5d5e69f01f:/doc/doc-txt/NewStuff diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff index 793887065..151960efc 100644 --- a/doc/doc-txt/NewStuff +++ b/doc/doc-txt/NewStuff @@ -1,4 +1,4 @@ -$Cambridge: exim/doc/doc-txt/NewStuff,v 1.53 2005/06/27 14:34:33 ph10 Exp $ +$Cambridge: exim/doc/doc-txt/NewStuff,v 1.66 2005/09/06 13:17:36 ph10 Exp $ New Features in Exim -------------------- @@ -8,6 +8,118 @@ but have not yet made it into the main manual (which is most conveniently updated when there is a relatively large batch of changes). The doc/ChangeLog file contains a listing of all changes, including bug fixes. +Exim version 4.53 +----------------- + +TK/01 Added the "success_on_redirect" address verification option. When an + address generates new addresses during routing, Exim will abort + verification with "success" when more than one address has been + generated, but continue to verify a single new address. The latter + does not happen when the new "success_on_redirect" option is set, like + + require verify = recipient/success_on_redirect/callout=10s + + In that case, verification will succeed when a router generates a new + address. + +PH/01 Support for SQLite database lookups has been added. This is another + query-style lookup, but it is slightly different from the others because + a file name is required in addition to the SQL query. This is because an + SQLite database is a single file and there is no daemon as in other SQL + databases. The interface to Exim requires the name of the file, as an + absolute path, to be given at the start of the query. It is separated + from the query by white space. This means that the path name cannot + contain white space. Here is a lookup expansion example: + + ${lookup sqlite {/some/thing/sqlitedb \ + select name from aliases where id='ph10';}} + + In a list, the syntax is similar. For example: + + domainlist relay_domains = sqlite;/some/thing/sqlitedb \ + select * from relays where ip='$sender_host_address'; + + The only character affected by the ${quote_sqlite: operator is a single + quote, which it doubles. + + The SQLite library handles multiple simultaneous accesses to the database + internally. Multiple readers are permitted, but only one process can + update at once. Attempts to access the database while it is being updated + are rejected after a timeout period, during which the SQLite library + waits for the lock to be released. In Exim, the default timeout is set + to 5 seconds, but it can be changed by means of the sqlite_lock_timeout + option. + + Note that you must set LOOKUP_SQLITE=yes in Local/Makefile in order to + obtain SQLite support, and you will also need to add -lsqlite3 to the + EXTRALIBS setting. And of course, you have to install SQLite on your + host first. + +PH/02 The variable $message_id is now deprecated, to be replaced by + $message_exim_id, which makes it clearer which ID is being referenced. + +PH/03 The use of forbid_filter_existstest now also locks out the use of the + ${stat: expansion item. + +PH/04 The IGNOREQUOTA extension to the LMTP protocol is now available in both + the lmtp transport and the smtp transport running in LMTP mode. In the + lmtp transport there is a new Boolean option called ignore_quota, and in + the smtp transport there is a new Boolean option called + lmtp_ignore_quota. If either of these options is set TRUE, the string + "IGNOREQUOTA" is added to RCPT commands when using the LMTP protocol, + provided that the server has advertised support for IGNOREQUOTA in its + response to the LHLO command. + +PH/05 Previously, if "verify = helo" was set in an ACL, the condition was true + only if the host matched helo_try_verify_hosts, which caused the + verification to occur when the EHLO/HELO command was issued. The ACL just + tested the remembered result. Now, if a previous verification attempt has + not happened, "verify = helo" does it there and then. + +PH/06 It is now possible to specify a port number along with a host name or + IP address in the list of hosts defined in the manualroute or + queryprogram routers, fallback_hosts, or the "hosts" option of the smtp + transport. These all override any port specification on the transport. + The relatively standard syntax of using a colon separator has been + adopted, but there are some gotchas that need attention: + + * In all these lists of hosts, colon is the default separator, so either + the colon that specifies a port must be doubled, or the separator must + be changed. The following two examples have the same effect: + + fallback_hosts = host1.tld::1225 : host2.tld::1226 + fallback_hosts = <; host1.tld:1225 ; host2.tld:1226 + + * When IPv6 addresses are involved, it gets worse, because they contain + colons of their own. To make this case easier, it is permitted to + enclose an IP address (either v4 or v6) in square brackets if a port + number follows. Here's an example from a manualroute router: + + route_list = * "