>> From: Marissa <[email protected]> >Our concerns are the possibility of mail being rejected by recipient >MTAs because of the invalid From: address and user complaints about >difficulty in replying to the poster.
Those are exactly the things I was worried about, too. I've seen no rejections at all due to the address. In an earlier iteration I tried using a null group address like this, which got rejected all over the place: From: "Marissa <[email protected]>" :; (That is legal syntax since March 2013 per RFC 6854, but few MTAs have been updated to take note, and anything that does DMARC processing tends to freak out if there is not exactly one From: address.) The .invalid hack seems fine, no bounces, and no complaints about disappearing mail. There are mutant versions of this hack where you append a name with a wildcard that resolves but has an MTA that rejects all the mail, and a really evil one where you append a name that points to a server that rewrites the address and remails it, e.g. [email protected] -> [email protected]. For replies, I expected complaints, since I'm using it on some busy lists for my church where people complain about every little burp, but to my surprise I've gotten none. I think one reason is that you can still use an unmunged Reply-To, which a lot of users do, and the other is that it's pretty obvious what to do to get the address to work, unlike trying to guess the author's address if the From: is the list. Something I have considered but not implemented is to add a fake Cc: line with the unmunged address so reply-to-all will work. It's not clear whether that would be more confusing than useful. Regards, John Levine, [email protected], Taughannock Networks, Trumansburg NY Please consider the environment before reading this e-mail. _______________________________________________ Mailman-Developers mailing list [email protected] https://mail.python.org/mailman/listinfo/mailman-developers Mailman FAQ: http://wiki.list.org/x/AgA3 Searchable Archives: http://www.mail-archive.com/mailman-developers%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-developers/archive%40jab.org Security Policy: http://wiki.list.org/x/QIA9
