Mailing List Message #92321
From: Wayde Nie <>
Subject: Re: Problems with Mail Redirection Option "Preserve To/CC fields"
Date: Fri, 24 Aug 2007 17:58:15 -0400
To: CommuniGate Pro Discussions <>
X-Mailer: CommuniGate Pro WebUser v5.1.11

It would be interesting to see what a session from the system log looked like. You'd have to set the SMTP sending log level to low-level or all info first, then catch one of the problem sessions. I can't see how preserving the To and Cc fields should have any impact on "relay" settings as long as your server and theirs are behaving properly.

It sounds like someone has a server that ignores the SMTP protocol and tries to deliver the message based on the To and Cc headers. Very bad idea....

Could the receiving sites be blocking based on SPF checks?

Wayde Nie.
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