Fix typo.

[users/jgh/exim.git] / doc / doc-txt / NewStuff

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-$Cambridge: exim/doc/doc-txt/NewStuff,v 1.106 2006/07/17 09:18:09 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/NewStuff,v 1.113 2006/10/02 14:30:29 ph10 Exp $

 
 New Features in Exim
 --------------------
 
 
 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), are
+   at least six characters long, with the sixth character being either a digit
+   or an underscore. The rest of the name can contain alphanumeric characters
+   and underscores. 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_c13   = value for original ACL variable
+     set acl_c13b  = whatever
+     set acl_m_foo = something
+
+   What happens if a syntactically valid but 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.
+
+2. There is a new ACL modifier called log_reject_target. It makes it possible
+   to specify which logs are used for messages about ACL rejections. Its
+   argument is a list of words which can be "main", "reject", or "panic". The
+   default is "main:reject". The list may be empty, in which case a rejection
+   is not logged at all. For example, this ACL fragment writes no logging
+   information when access is denied:
+
+     deny <some conditions>
+          log_reject_target =
+
+   The modifier can be used in SMTP and non-SMTP ACLs. It applies to both
+   permanent and temporary rejections.
+
+3. There is a new authenticator called "dovecot". This is an interface to the
+   authentication facility of the Dovecot POP/IMAP server, which can support a
+   number of authentication methods. If you are using Dovecot to authenticate
+   POP/IMAP clients, it might be helpful to use the same mechanisms for SMTP
+   authentication. This is a server authenticator only. The only option is
+   server_socket, which must specify the socket which is the interface to
+   Dovecot authentication. The public_name option must specify an
+   authentication mechanism that Dovecot is configured to support. You can have
+   several authenticators for different mechanisms. For example:
+
+     dovecot_plain:
+       driver = dovecot
+       public_name = PLAIN
+       server_name = /var/run/dovecot/auth-client
+       server_setid = $auth1
+
+     dovecot_ntlm:
+       driver = dovecot
+       public_name = NTLM
+       server_name = /var/run/dovecot/auth-client
+       server_setid = $auth1
+

 
 Version 4.63
 ------------
 
 1. There is a new Boolean option called filter_prepend_home for the redirect
 
 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
 
 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
 
 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
-   smtp_error_code option false. 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
 
 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
+        After all other sorting options have bee processed, reverse order
+        before displaying messages (-R is synonym).
+    --random
+        Randomize order of matching messages before displaying.
+    --size
+        Instead of displaying the matching messages, display the sum
+        of their sizes.
+    --sort <variable>[,<variable>...]
+        Before displaying matching messages, sort the messages according to
+        each messages value for each variable.
+    --not
+        Negate the value for every test (returns inverse output from the
+        same criteria without --not).

 
 
 Version 4.62
 
 
 Version 4.62