Re: [Exim] pri/sec MX on same machine to catch spam

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Author: Philip Hazel
Date:  
To: Wakko Warner
CC: exim-users
Subject: Re: [Exim] pri/sec MX on same machine to catch spam
On Thu, 17 Jul 2003, Wakko Warner wrote:

> Am I correct in assuming that most mailservers (exim, sendmail, qmail,
> smail, postfix, ...) will try the backup MX if the primary is down or
> returns a temporary failure code?


Exim certainly will, in both cases.

What is more, if the primary is down and the message is sent to the
secondary, if another message arrives very soon (before the time to
retry the primary has arrived), Exim will go straight to the secondary.


--
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.