>| Return-Path isn't - that's only intended for mail delivery, messages should >| never contain one of those until they're being delivered (and anyone who >| believes they should should thank any mailer that corrects them). > >Letting users supply return-path is both reasonable and necessary.
Hm. I did some research, and I'm going to have to side with kre on this one. RFC 2822 clearly states: A message-originating SMTP system SHOULD NOT send a message that already contains a Return-path header. SMTP servers performing a relay function MUST NOT inspect the message data, and especially not to the extent needed to determine if Return-path headers are present. SMTP servers making final delivery MAY remove Return-path headers before adding their own. I guess what nmh should be doing depends on whether or not it's using SMTP or "pipe to the local MTA". If it's the former, it definately shouldn't allow Return-Path; if it's the latter, it _might_ be okay (although I personally think it's a bit bogus - clearly Return-Path was never meant to be used this way, and supporting a wacky qmail feature just doesn't strike me as a good justification). >On the one hand, your MTA is in charge of checking the input (because any >user can talk directly to it.) Mine (qmail) does, and so anything my MUA >(MH) does is at best redundant. But in this case MH is actively causing >problems, because it isn't enforcing the correct rules. qmail uses >user-supplied return-path to set the envelope sender on outgoing messages >(and removes the return-path header from the message.) That's perfectly >sensible, and very nice. It seems like a knob that lets you adjust the SMTP envelope From address is really what you want, rather than using Return-Path particularly. I'm open to suggestions as to the best way to implement such a knob. I think the functionality is valuable, certainly. >I use it all the time to convince mailing list >software that checks the envelope that I'm posting from the address they >have on file, for example. Is that why I have to approve every mail to nmh-workers from you? :-/ --Ken _______________________________________________ Nmh-workers mailing list [EMAIL PROTECTED] http://mail.nongnu.org/mailman/listinfo/nmh-workers
