-$Cambridge: exim/doc/doc-txt/NewStuff,v 1.111 2006/09/25 10:14:20 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/NewStuff,v 1.125 2006/12/20 09:44:37 ph10 Exp $
New Features in Exim
--------------------
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.
+ 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.
+
+ 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.
+
+ 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.
+
+ 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, 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.
+
+ 6. All authenticators now have a server_condition option.
+
+ 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.
+
+ 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 that contains a
+ message.
+
+ 9. When an address is delayed because of a 4xx response to a RCPT command, it
+ is now the combination of sender and recipient that is delayed in
+ subsequent queue runs until its retry time is reached.
+
+10. Unary negation and the bitwise logical operators and, or, xor, not, and
+ shift, have been added to the eval: and eval10: expansion items.
+
+11. The variables $interface_address and $interface_port have been renamed
+ as $received_ip_address and $received_port, to make it clear that they
+ relate to message reception rather than delivery. (The old names remain
+ available for compatibility.)
+
+12. The "message" modifier can now be used on "accept" and "discard" acl verbs
+ to vary the message that is sent when an SMTP command is accepted.
Version 4.63
git://git.exim.org / exim.git / blobdiff