Tomoyuki Murakami: > Hi, all > > I'm just playing with implement SRS(Sender Rewriting Scheme)-like > function into Postfix. > *SRS - http://www.openspf.org/SRS > A trivial patch, attached this message would do the following. > * rewrite sender when the message will forward to other site/domain. > * Nope when the VERP setting is active. > * rewriting format: > Message sender: [email protected] (sender) > Forwarder: [email protected] (orig_addr) > -> MAIL From: [email protected] > * target transport is smtp only. > > ToDo. > configurable options to activate the function, target transports, > target domains, etc. > > Any comments would be appreciated.
First, this would accept mail for [email protected], meaning that it would be an open relay. A more secure implementation would compute a hash of ([email protected], local secret) and include that hash in the return address. Second, Postfix has a plugin interface that supports implementations SRS, SPF, DKIM, SenderID, etc. I currently have no plans to build these into Postfix. Wietse
