Who's the agent responsible for the actual transmission of the message? Is Mailman acting as this agent? Arguably not.
I disagree. I believe that this is exactly the role that Mailman is fulfilling.
One other thing. Mailman also adds an Errors-To header with the same envelope sender address. Errors-To isn't described in RFC 2822, and it's described as non-standard, discouraged in RFC 2076. This latter recommends Return-Path instead, so even there maybe Mailman isn't doing quite the right thing. (It's not clear to me whether Outlook is conflating From and Return-Path also, though.)
However, you're not taking into account the fact that the MTAs almost always ensure that there is a correct "Return-Path:" header, and will in fact wipe out any "Return-Path:" header that might have previously existed.
However, this won't happen with the "Errors-To:" header, which is largely used by older and obsolete MTAs which don't know about "Return-Path:".
In this case, I disagree with the RFCs, at least so far as this issue pertains to Mailman -- these rules are meant for MTAs and not MLMs.
It is highly unlikely to cause any harm for Mailman to use "Errors-To:", and is likely to help when the messages are processed by older and obsolete MTAs. Moreover, it is useful to the rest of us, because more modern MTAs will ignore it and yet it will still provide potentially useful information.
-- Brad Knowles, <[EMAIL PROTECTED]>
"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
-Benjamin Franklin, Historical Review of Pennsylvania.GCS/IT d+(-) s:+(++)>: a C++(+++)$ UMBSHI++++$ P+>++ L+ !E-(---) W+++(--) N+ !w--- O- M++ V PS++(+++) PE- Y+(++) PGP>+++ t+(+++) 5++(+++) X++(+++) R+(+++) tv+(+++) b+(++++) DI+(++++) D+(++) G+(++++) e++>++++ h--- r---(+++)* z(+++)
------------------------------------------------------ Mailman-Users mailing list [EMAIL PROTECTED] http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/
This message was sent to: [EMAIL PROTECTED] Unsubscribe or change your options at http://mail.python.org/mailman/options/mailman-users/archive%40jab.org
