Hi Jon, I already described the solution I use for masquerading here https://marc.info/?l=openbsd-misc&m=154811965001823&w=2 Users don't need to be authenticated when your smtp server receives the initial email. The authenticated user is local to the smtp server, it's just a trick to rewrite the header. In my case an external server from an SNS sends me a message (in fact to a friend), the server rewrites the from (envelope and header), changes the recipient to a gmail address, and forwards the message to gmail. The SNS is obviously not authenticated. I needed it so gmail is happy with this indirection flow.
Thanks, Eric On Fri, 4 Oct 2019 08:08:57 +0000 (UTC) Jon Arlund wrote: > Hi misc, > I was delighted to see the inclusion of OpenSMTPD filters in the latest > snapshot. > Knowing this has been a frequently requested feature, does someone know > if/how filters could be used to implement domain rewriting/masquerading of > the From header in the DATA section? > I know the "senders" parameter in combination with the "masquerade" option is > capable of rewriting the From header for authenticated users. Unfortunately, > we still have legacy systems that don't support SMTP authentication but are > allowed to relay messages based on their IP address. > Any information will be greatly appreciated. > Kind regards, > Jon
