forwaded mail via a separate MTA

[Vladimir]

Is it possible to configure Zimbra to send all forwarded mail via a different MTA, or a different identity for the outgoing server, while maintaining the existing path for for normally composed mail?

There are a bunch of efforts out there to make sure that people don't get blacklisted for just forwarding mail as the user requested but being tagged a spam host by a different host. See http://www.maawg.org/about/published...warding_BP.pdf for the reasons I ask this.

[uxbod]

Hmmm, well one (fudge) was of doing this would be to use Postfix Header Checks and the FILTER directive for a particular string. You could then use a transport filter to inject the email into a separate MTA.