Re: [exim] how to drop failed DSN?

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Autor: Philip Hazel
Data:  
Para: Chad Leigh
CC: exim users
Assunto: Re: [exim] how to drop failed DSN?
On Fri, 22 Dec 2006, Chad Leigh -- Shire.Net LLC wrote:

> ignore_bounce_errors_after = 0s
> timeout_frozen_after = 5d
>
> is 0s not valid for ignore_bounce_errors_after ?


It should work. If it doesn't, something is wrong.


+------------------------------------------------------------+
|ignore_bounce_errors_after|Use: main|Type: time|Default: 10w|
+------------------------------------------------------------+

This option affects the processing of bounce messages that cannot be delivered,
that is, those that suffer a permanent delivery failure. (Bounce messages that
suffer temporary delivery failures are of course retried in the usual way.)

After a permanent delivery failure, bounce messages are frozen, because there
is no sender to whom they can be returned. When a frozen bounce message has
been on the queue for more than the given time, it is unfrozen at the next
queue run, and a further delivery is attempted. If delivery fails again, the
bounce message is discarded. This makes it possible to keep failed bounce
messages around for a shorter time than the normal maximum retry time for
frozen messages. For example,

ignore_bounce_errors_after = 12h

retries failed bounce message deliveries after 12 hours, discarding any further
failures. If the value of this option is set to a zero time period, bounce
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
failures are discarded immediately. Setting a very long time (as in the default
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
value) has the effect of disabling this option. For ways of automatically
dealing with other kinds of frozen message, see auto_thaw and
timeout_frozen_after.





-- 
Philip Hazel            University of Cambridge Computing Service
Get the Exim 4 book:    http://www.uit.co.uk/exim-book