> From: barryleiba.mailing.lists@xxxxxxxxx [mailto:barryleiba.mailing.lists@xxxxxxxxx] On Behalf Of Barry Leiba > Sent: Thursday, March 01, 2012 3:01 PM > To: Murray S. Kucherawy > Cc: ietf@xxxxxxxx > Subject: Re: Last Call: <draft-melnikov-smtp-priority-07.txt> (Simple Mail Transfer Protocol extension for Message Transfer Priorities) to Proposed Standard > > Oh, it's absolutely true that if one is to define this sort of thing as a combination of SMTP protocol and > message header fields, that should be done in a single specification. What I'm interested in community input > on is whether the mechanism of transferring the information back and forth between the two, and having SMTP > protocol get involved in inspecting and altering header fields is a good thing. It took me a bit of reading of older SMTP extension documents to realize that this was something new. I had thought things like DELIVERBY did this, but I see now that's not the case. To borrow some language from recent conversations that considered questions like this, it is only a /proposed/ standard we're talking about. That said, are there any existing implementations of this that can speak to the question of unintended side effects? -MSK _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf