From 38a0a95ff69327042421b9ee6982e386175f141b Mon Sep 17 00:00:00 2001 From: Philip Hazel Date: Tue, 19 Sep 2006 11:28:44 +0000 Subject: Apply Jakob Hirsch's patch for arbitrary ACL variable names, tidied up just a little bit. --- doc/doc-txt/NewStuff | 70 ++++++++++++++++++++++++++++------------------------ 1 file changed, 38 insertions(+), 32 deletions(-) (limited to 'doc/doc-txt/NewStuff') diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff index 7f00ee5cd..5be3e69bf 100644 --- a/doc/doc-txt/NewStuff +++ b/doc/doc-txt/NewStuff @@ -1,52 +1,58 @@ -$Cambridge: exim/doc/doc-txt/NewStuff,v 1.108 2006/07/31 14:19:31 ph10 Exp $ +$Cambridge: exim/doc/doc-txt/NewStuff,v 1.109 2006/09/19 11:28:44 ph10 Exp $ New Features in Exim -------------------- -This file contains descriptions of new features that have been added to Exim, -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. +This file contains descriptions of new features that have been added to Exim. +Before a formal release, there may be quite a lot of detail so that people can +test from the snapshots or the CVS before the documentation is updated. Once +the documentation is updated, this file is reduced to a short list. + + +Version 4.64 +------------ + +1. ACL variables can now be given arbitrary names, as long as they start with + "acl_c" or "acl_m" (for connection variables and message variables) and are + at least 6 characters long. However, only alphanumeric characters and + underscores are allowed. This is a compatible change because the old set of + variables such as acl_m12 are a subset of the allowed names. There may now + be any number of ACL variables. For example: + + set acl_c_foo = something + set acl_ccc = thingsome + set acl_m13 = value for original ACL variable + set acl_m13b = whatever + + What happens if an undefined ACL variable is referenced depends on the + setting of the strict_acl_vars option. If it is false (the default), an + empty string is substituted; if it is true, an error is generated. This + affects all ACL variables, including the "old" ones such as acl_c4. + (Previously there wasn't the concept of an undefined ACL variable.) + + The implementation has been done in such a way that spool files containing + ACL variable settings written by previous releases of Exim are compatible + and can be read by the new release. If only the original numeric names are + used, spool files written by the new release can be read by earlier + releases. + Version 4.63 ------------ 1. There is a new Boolean option called filter_prepend_home for the redirect - router. It defaults true, for backward compatibility. If a "save" command in - an Exim filter has a relative path for its argument, and $home is defined, - it is automatically prepended to the relative path. This action can now be - prevented by setting filter_prepend_home false. + router. 2. There is a new acl, set by acl_not_smtp_start, which is run right at the start of receiving a non-SMTP message, before any of the message has been - read. (This is the analogue of the acl_smtp_predata ACL for SMTP input.) The - result of this ACL is ignored; it cannot be used to reject a message. If - you really need to, you could set a value in an ACL variable here and reject - based on that in the acl_not_smtp ACL. However, this ACL can be used to set - controls, and in particular, it can be used to set control=suppress_local_ - fixups, which cannot be used in the acl_not_smtp ACL because by the time - that ACL is run, it is too late. When the acl_not_smtp_start ACL is run, the - sender and recipients are known, so the "senders" and "sender_domains" - conditions and $sender_address and $recipients variables can be used. - Variables such as $authenticated_ sender are also available. It is possible - to specify added header lines in this ACL. + read. 3. When an SMTP error message is specified in a "message" modifier in an ACL, or in a :fail: or :defer: message in a redirect router, Exim now checks the - start of the message for an SMTP error code. This consists of three digits - followed by a space, optionally followed by an extended code of the form - n.n.n, also followed by a space. If this is the case and the very first - digit is the same as the default error code, the code from the message is - used instead. If the very first digit is incorrect, a panic error is logged, - and the default code is used. This is an incompatible change, but it is not - expected to affect many (if any) configurations. It is possible to suppress - the use of the supplied code in a redirect router by setting the - forbid_smtp_code option true. In this case, any SMTP code is quietly - ignored. + start of the message for an SMTP error code. 4. There is a new parameter for LDAP lookups called "referrals", which takes - one of the settings "follow" (the default) or "nofollow". The latter stops - the LDAP library from trying to follow referrals issued by the LDAP server. + one of the settings "follow" (the default) or "nofollow". 5. Version 20070721.2 of exipick now included, offering these new options: --reverse -- cgit v1.2.3