I have been looking at SRS and have some questions.
Is SRS meant to be implement at the MTA level?
First the choice of bounce- for rewriting. This would break qmail as it
stands. You could get around it with lots of mugging and aliases, but it
would not be pretty. I would think an inside outside forwarding
rewriting would be easier to deal with at the MTA level due to it not
requiring any changes, and users can control their own forwards. An
example would be like this:
sndr: bob(_at_)sender(_dot_)org
rcpt: joe(_at_)forwarder(_dot_)com
joe(_at_)forwarder(_dot_)com forwards to trogdor(_at_)remailer(_dot_)com
sndr: joe-bounce=-bob#sender(_dot_)org(_at_)forwarder(_dot_)com
rcpt: trogdor(_at_)remailer(_dot_)com
trogdor(_at_)remailer(_dot_)com forwards to
j(_dot_)fhqwhgads(_at_)destination(_dot_)com
sndr:
trogdor-bounce=-joe-bounce=-bob#sender(_dot_)org#forwarder(_dot_)com(_at_)remailer(_dot_)com
rcpt: j(_dot_)fhqwhgads(_at_)destination(_dot_)com
With a format like this you could also use cookies in a defines way.
Example:
sndr: bob(_at_)sender(_dot_)org
rcpt: joe(_at_)forwarder(_dot_)com
joe(_at_)forwarder(_dot_)com forwards to trogdor(_at_)remailer(_dot_)com
sndr: joe-bounce=<OneTimecookie>-bob#sender(_dot_)org(_at_)forwarder(_dot_)com
rcpt: trogdor(_at_)remailer(_dot_)com
Rinse lather repeat.
-Jeremy Rossi
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