[Dovecot] Some Dovecot LDA version sends MDN rather than DSNfor overquota.

Timo Sirainen tss at iki.fi
Sun Feb 12 19:03:10 EET 2012

On 12.2.2012, at 18.57, Mark Sapiro wrote:

>> On 12/22/2010 08:08 PM, Mark Sapiro wrote:
>>> It appears that there is some version of the Dovecot LDA that is
>>> sending an RFC 3798 MDN rather than an RFC 3464 DSN to report
>>> non-delivery to a user who is over quota.
>> Fixed, better late than never :)
>> The MDN sending was simply copied from Cyrus. So Dovecot isn't the only 
>> server sending this.
> :(

It was actually a bit more complex than I thought. Sieve "reject" is supposed to send MDN (RFC 5228), it's only the out-of-quota error that was supposed to send DSN. So now Dovecot can send both: http://hg.dovecot.org/dovecot-2.1/rev/ad5298ba3229

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