2 messages in net.sourceforge.lists.courier-usersRe: [courier-users] Backup MX not wor...
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Lourik MalanFeb 14, 2007 11:47 pm 
Gordon MessmerFeb 20, 2007 12:14 am 
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Subject:Re: [courier-users] Backup MX not working. Needs Help Please(456 Address temporarily unavailable.)Actions...
From:Gordon Messmer (yiny@eburg.com)
Date:Feb 20, 2007 12:14:26 am
List:net.sourceforge.lists.courier-users

Lourik Malan wrote:

I'm using courier to backup mx for the a domain (test.co.za). Here is the config files i've configured.

Generally speaking, I think most people will recommend that you not run a backup MX. They're going to be a spam target, and they don't really improve site reliability any more.

:locals mx2.test.co.za

:esmtpacceptmailfor test.co.za

:Domain test.co.za: Relay: mx1.testco.za, Priority: 10, Address: 196.ip.ip.ip Relay: mx2.test.co.za, Priority: 20, Address: 192.168.4.2 [ LOCAL ]

I get the following Error: :456 Address temporarily unavailable.

You need to be more specific about where you see that error. It indicates that a previous delivery to the address specified failed. That probably means that the address is considered "local", which would mean that the backup MX isn't configured correctly. Without the address, and probably all of the related lines in the mail log, there's not much advice we can give you.