Just to update anyone following this thread with my very important finding:
Setting "append_at_myorigin = no" does seem to fix postfix so that it doesn't monkey with existing To/Cc/Bcc in the data header field - very cool. Does what I expected it to do. Severe collateral damage: Setting "append_at_myorigin = no" will BREAK SAV/RAV unless you also set: address_verify_sender = [EMAIL PROTECTED] default for this field in the main.cf.default is simply "postmaster" (which will trivial-rewrite will change to [EMAIL PROTECTED] when append_at_myorigin=YES) Otherwise, every other MTA that you try to verify with that won't accept non-fqdn address (as I suppose they shouldn't if they are operating correctly), will reject your SAV/RAV attempts. Your IMGate will start rejecting pretty much everything. <sarcasm>The really cool thing is because postfix caches SAV/RAV results, you won't notice anything odd for at least several hours, or at least until your phone starts ringing...</sarcasm> I've gone thru and made sure all of the addresses for notices/SAV/RAV/etc are all FQ, and now things appear back to normal. Mail is fun! - Tony ... hmmm, why is this boob stuck to my mouse curser, strange(?) :-)
