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Re: Postfix and SMTP connections.
From: Victor Duchovni (Victor.Duchovni
MorganStanley.com)
Date: Wed Dec 01 2004 - 09:39:00 CST
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On Wed, Dec 01, 2004 at 03:33:08PM +0000, Gerard Whelan wrote:
> I am using postfix-2.1.1-3.rh8 at the moment and it is configured
> as an MX backup. Currently Postfix relays to a primary MTA - but the
> primary MTA has been configured to deny connection from a client that
> is trying to connect all the time - we have done this in order to
> reduce the chance of a trusted client relaying spam through our
> primary MTA.
Don't rate limit your backup MX host! Apply similar controls at the
backup MX, and whitelist the backup MX and disable all rate limits
on the primary MX.
--
Viktor.
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