[Dovecot] How to deal with mail to unknown virtual recipients?

Andreas Ntaflos daff at dword.org
Fri Apr 18 21:27:53 EEST 2008

On Friday 18 April 2008 18:56:08 Charles Marcus wrote:
> On 4/18/2008, Andreas Ntaflos (daff at pseudoterminal.org) wrote:
> > Is there anything Dovecot itself can do to reject or handle mail to
> > invalid virtual users?
> Not directly - the solution, as you surmised, earlier, is to use the
> same db backend for your users.
> > Or does this situation *have* to be dealt with
> > earlier, by the MTA?
> Yes, it *must* be done at the MTA, otherwise you accept-then-bounce,
> which makes you a backscatter source, and will quickly get you
> blacklisted...

Charles, Ed, 

thank you very much for your insightful replies.

Andreas "daff" Ntaflos
Vienna, Austria

GPG Fingerprint: 6234 2E8E 5C81 C6CB E5EC  7E65 397C E2A8 090C A9B4
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