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68181c74 | 1 | $Cambridge: exim/doc/doc-txt/NewStuff,v 1.113 2006/10/02 14:30:29 ph10 Exp $ |
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2 | |
3 | New Features in Exim | |
4 | -------------------- | |
5 | ||
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6 | This file contains descriptions of new features that have been added to Exim. |
7 | Before a formal release, there may be quite a lot of detail so that people can | |
8 | test from the snapshots or the CVS before the documentation is updated. Once | |
9 | the documentation is updated, this file is reduced to a short list. | |
10 | ||
11 | ||
12 | Version 4.64 | |
13 | ------------ | |
14 | ||
15 | 1. ACL variables can now be given arbitrary names, as long as they start with | |
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16 | "acl_c" or "acl_m" (for connection variables and message variables), are |
17 | at least six characters long, with the sixth character being either a digit | |
18 | or an underscore. The rest of the name can contain alphanumeric characters | |
19 | and underscores. This is a compatible change because the old set of | |
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20 | variables such as acl_m12 are a subset of the allowed names. There may now |
21 | be any number of ACL variables. For example: | |
22 | ||
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23 | set acl_c13 = value for original ACL variable |
24 | set acl_c13b = whatever | |
25 | set acl_m_foo = something | |
38a0a95f | 26 | |
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27 | What happens if a syntactically valid but undefined ACL variable is |
28 | referenced depends on the setting of the strict_acl_vars option. If it is | |
29 | false (the default), an empty string is substituted; if it is true, an error | |
30 | is generated. This affects all ACL variables, including the "old" ones such | |
31 | as acl_c4. (Previously there wasn't the concept of an undefined ACL | |
32 | variable.) | |
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33 | |
34 | The implementation has been done in such a way that spool files containing | |
35 | ACL variable settings written by previous releases of Exim are compatible | |
36 | and can be read by the new release. If only the original numeric names are | |
37 | used, spool files written by the new release can be read by earlier | |
38 | releases. | |
39 | ||
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40 | 2. There is a new ACL modifier called log_reject_target. It makes it possible |
41 | to specify which logs are used for messages about ACL rejections. Its | |
42 | argument is a list of words which can be "main", "reject", or "panic". The | |
43 | default is "main:reject". The list may be empty, in which case a rejection | |
44 | is not logged at all. For example, this ACL fragment writes no logging | |
45 | information when access is denied: | |
46 | ||
47 | deny <some conditions> | |
48 | log_reject_target = | |
49 | ||
50 | The modifier can be used in SMTP and non-SMTP ACLs. It applies to both | |
51 | permanent and temporary rejections. | |
52 | ||
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53 | 3. There is a new authenticator called "dovecot". This is an interface to the |
54 | authentication facility of the Dovecot POP/IMAP server, which can support a | |
55 | number of authentication methods. If you are using Dovecot to authenticate | |
56 | POP/IMAP clients, it might be helpful to use the same mechanisms for SMTP | |
57 | authentication. This is a server authenticator only. The only option is | |
58 | server_socket, which must specify the socket which is the interface to | |
59 | Dovecot authentication. The public_name option must specify an | |
60 | authentication mechanism that Dovecot is configured to support. You can have | |
61 | several authenticators for different mechanisms. For example: | |
62 | ||
63 | dovecot_plain: | |
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64 | driver = dovecot |
65 | public_name = PLAIN | |
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66 | server_name = /var/run/dovecot/auth-client |
67 | server_setid = $auth1 | |
68 | ||
69 | dovecot_ntlm: | |
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70 | driver = dovecot |
71 | public_name = NTLM | |
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72 | server_name = /var/run/dovecot/auth-client |
73 | server_setid = $auth1 | |
74 | ||
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76 | Version 4.63 |
77 | ------------ | |
78 | ||
79 | 1. There is a new Boolean option called filter_prepend_home for the redirect | |
38a0a95f | 80 | router. |
4608d683 | 81 | |
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82 | 2. There is a new acl, set by acl_not_smtp_start, which is run right at the |
83 | start of receiving a non-SMTP message, before any of the message has been | |
38a0a95f | 84 | read. |
45b91596 | 85 | |
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86 | 3. When an SMTP error message is specified in a "message" modifier in an ACL, |
87 | or in a :fail: or :defer: message in a redirect router, Exim now checks the | |
38a0a95f | 88 | start of the message for an SMTP error code. |
a5bd321b | 89 | |
6ec97b1b | 90 | 4. There is a new parameter for LDAP lookups called "referrals", which takes |
38a0a95f | 91 | one of the settings "follow" (the default) or "nofollow". |
6ec97b1b | 92 | |
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93 | 5. Version 20070721.2 of exipick now included, offering these new options: |
94 | --reverse | |
95 | After all other sorting options have bee processed, reverse order | |
96 | before displaying messages (-R is synonym). | |
97 | --random | |
98 | Randomize order of matching messages before displaying. | |
99 | --size | |
100 | Instead of displaying the matching messages, display the sum | |
101 | of their sizes. | |
102 | --sort <variable>[,<variable>...] | |
103 | Before displaying matching messages, sort the messages according to | |
104 | each messages value for each variable. | |
105 | --not | |
106 | Negate the value for every test (returns inverse output from the | |
107 | same criteria without --not). | |
108 | ||
4608d683 | 109 | |
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110 | Version 4.62 |
111 | ------------ | |
112 | ||
113 | 1. The ${readsocket expansion item now supports Internet domain sockets as well | |
114 | as Unix domain sockets. If the first argument begins "inet:", it must be of | |
115 | the form "inet:host:port". The port is mandatory; it may be a number or the | |
116 | name of a TCP port in /etc/services. The host may be a name, or it may be an | |
117 | IP address. An ip address may optionally be enclosed in square brackets. | |
118 | This is best for IPv6 addresses. For example: | |
119 | ||
120 | ${readsocket{inet:[::1]:1234}{<request data>}... | |
121 | ||
122 | Only a single host name may be given, but if looking it up yield more than | |
123 | one IP address, they are each tried in turn until a connection is made. Once | |
124 | a connection has been made, the behaviour is as for ${readsocket with a Unix | |
125 | domain socket. | |
126 | ||
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127 | 2. If a redirect router sets up file or pipe deliveries for more than one |
128 | incoming address, and the relevant transport has batch_max set greater than | |
129 | one, a batch delivery now occurs. | |
130 | ||
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131 | 3. The appendfile transport has a new option called maildirfolder_create_regex. |
132 | Its value is a regular expression. For a maildir delivery, this is matched | |
133 | against the maildir directory; if it matches, Exim ensures that a | |
134 | maildirfolder file is created alongside the new, cur, and tmp directories. | |
135 | ||
1cce3af8 | 136 | |
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137 | Version 4.61 |
138 | ------------ | |
139 | ||
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140 | The documentation is up-to-date for the 4.61 release. Major new features since |
141 | the 4.60 release are: | |
142 | ||
143 | . An option called disable_ipv6, to disable the use of IPv6 completely. | |
144 | ||
145 | . An increase in the number of ACL variables to 20 of each type. | |
146 | ||
147 | . A change to use $auth1, $auth2, and $auth3 in authenticators instead of $1, | |
148 | $2, $3, (though those are still set) because the numeric variables get used | |
149 | for other things in complicated expansions. | |
150 | ||
843a41e8 | 151 | . The default for rfc1413_query_timeout has been changed from 30s to 5s. |
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152 | |
153 | . It is possible to use setclassresources() on some BSD OS to control the | |
154 | resources used in pipe deliveries. | |
155 | ||
156 | . A new ACL modifier called add_header, which can be used with any verb. | |
157 | ||
158 | . More errors are detectable in retry rules. | |
159 | ||
160 | There are a number of other additions too. | |
71fafd95 | 161 | |
7e66e54d | 162 | |
425ae40f | 163 | Version 4.60 |
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164 | ------------ |
165 | ||
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166 | The documentation is up-to-date for the 4.60 release. Major new features since |
167 | the 4.50 release are: | |
1a46a8c5 | 168 | |
425ae40f | 169 | . Support for SQLite. |
1a46a8c5 | 170 | |
425ae40f | 171 | . Support for IGNOREQUOTA in LMTP. |
1a46a8c5 | 172 | |
425ae40f | 173 | . Extensions to the "submission mode" features. |
1a46a8c5 | 174 | |
425ae40f | 175 | . Support for Client SMTP Authorization (CSA). |
1a46a8c5 | 176 | |
425ae40f | 177 | . Support for ratelimiting hosts and users. |
b5aea5e1 | 178 | |
425ae40f | 179 | . New expansion items to help with the BATV "prvs" scheme. |
b5aea5e1 | 180 | |
425ae40f | 181 | . A "match_ip" condition, that matches an IP address against a list. |
35edf2ff | 182 | |
425ae40f | 183 | There are many more minor changes. |
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184 | |
185 | **** |