-$Cambridge: exim/doc/doc-txt/NewStuff,v 1.69 2005/09/13 11:13:27 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/NewStuff,v 1.73 2005/09/19 14:01:51 ph10 Exp $
New Features in Exim
--------------------
possible to distinguish between HELO and EHLO, and also between things
like "MAIL FROM:<>" and "MAIL FROM: <>".
+TF/01 There's a new script in util/ratelimit.pl which extracts sending
+ rates from log files, to assist with choosing appropriate settings
+ when deploying the ratelimit ACL condition.
+
+PH/13 A new letter, "H", is available in retry parameter sets. It is similar
+ to "G" (geometric increasing time intervals), except that the interval
+ before the next retry is randomized. Each time, the previous interval is
+ multiplied by the factor in order to get a maximum for the next interval.
+ The mininum interval is the first argument of the parameter, and an
+ actual interval is chosen randomly between them. Such a rule has been
+ found to be helpful in cluster configurations when all the members of the
+ cluster restart at once, and may synchronize their queue processing
+ times.
+
+PH/14 The options never_users, trusted_users, admin_groups, and trusted_groups
+ are now expanded when the configuration file is read.
+
Exim version 4.52
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rate limit. Conversely, if m and p are both small then messages must be
sent at an even rate.
- The key is used to look up the data used to calcluate the client's
+ The key is used to look up the data used to calculate the client's
average sending rate. This data is stored in a database maintained by
Exim in its spool directory alongside the retry database etc. For
example, you can limit the sending rate of each authenticated user,
Each ratelimit condition can have up to two options. The first option
specifies what Exim measures the rate of, and the second specifies how
- Exim handles excessively fast clients.
+ Exim handles excessively fast clients. The options are separated by a
+ slash, like the other parameters.
The per_mail option means that it measures the client's rate of sending
messages. This is the default if none of the per_* options is specified.