From: Sébastien Cantos (scantostechnodiva.com)
Date: Thu Feb 02 2006 - 06:54:59 CST

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Hello,

I've some email servers based on Postfix. These servers are configure to
handle one domain, let's say domainA.com and my dns servers are configured
with a MX record and a PTR record to make sure antispam systems will not
reject incoming emails.

I want to be able to use these servers to send emails with a sender adresse
containing another domain let's say domainB.org. I want to configure postfix
to use the servers that are handling domainB.com as a smarthost for emails
with a sender adress like domainB.com to make sure all emails sent with a
source address that looks like *domainB.org will be sent by the servers
handling domainB.org to make sure antispam systems will not reject the
emails when doing dns checks.
What do I have to configure on my postfix servers to do this ?

Thanks in advance for your responses.

Best Regards,
--
Sebastien Cantos <scantostechnodiva.com>
Network / System Manager
Neopost DIVA

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