------ Original Message ------
From "L. Mark Stone via mailop" <[email protected]> FWIW, our company focuses on Zimbra software, and in the Zimbra web client, when you select the "Forward" action, the Zimbra web client actually crafts a brand new email message but tarts it all up to look like a forward. Such emails then pass SPF no problem, since the envelope sender's domain is the user doing the "forwarding".
Mark,This is an excellent feature overall - I wish more systems had something like this built-in - but as I'm sure you're aware - it can greatly backfire if/when spam slips past the filter and gets forwarded - but systems with better/superior filtering are going to have far FEWER issues that those with poor or average spam filtering.... because it sure seems like the recipient email hosts (especially the large providers) - are going to assign MORE blame for THESE types of spams that get forwarded in THIS way - than they would if it was a "regular" forwarding. (I don't have a shred of evidence to back that up - but that's a very very "educated guess")
This doesn't mean that such a feature is bad idea - but that does make it all the more important that such a feature only get implemented if/when email hosting system that is doing such forwarding - has very accurate and high-quality spam filtering. (Unless someone just wants their mail server to suddenly have massive across-the-board deliverability issues to the large providers.)
Also, is this a feature that is built into Zimbra? Or something you custom implemented?
(just curious) --Rob McEwen
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