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Re: Dual Mail Relays

From: mouss (usebsdfree.fr)
Date: Wed Aug 02 2006 - 18:09:38 CDT


Tony Nelson wrote:
> I tried out relay_domains but did not like the result on the secondary
> server. With relay domains in place alias expansion did not occour
> (because local was not involved) and all mail that was processed by
> the secondary gateway was forwarded to the primary and then alias
> expanion occured for final delivery which in my network architecture
> is nothing but a waste of bandwidth over a VPN connection.
>
> At the moment, I'm just checking email on both boxes. We are
> currently using aliases because the previous sendmail based solution
> did. Being new to postfix, I'm not quite sure what virtual aliases or
> per recipient transports are, but I will do some research to determine
> if they are a better solution in a Postfix based environment.
Use virtual_alias_maps instead of alias_maps. virtual aliases are
resolved for _all_ mail. so
            fooyahoo.com tnelsonstarpoint.com
will forward mail destined for fooyahoo.com to your account. even if
yahoo.com isn't a domain of yours.

PS. I get this from your system:

<tnelsonstarpoint.com>: host mail.starpoint.com[207.239.34.137] said: 554
    Service unavailable; Client host [82.239.111.75] blocked using
    dul.dnsbl.sorbs.net; Dynamic IP Addresses See:
    http://www.sorbs.net/lookup.shtml?82.239.111.75 (in reply to RCPT TO
    command)

As a result, this is my last message to you. and as I don't want to restart a discussion with Matthieu Sullivan (we disagree, and that's it), I won't give any recommendation here.