On Mar 25, 2010, at 1:56 PM, Murray S. Kucherawy wrote: > I said this to Jeff in person at IETF but here it is for the list: > > It's my understanding that this was based on a collection of various SMTP > text replies being returned by various ISPs when objectionable content is > presented for delivery. Some similarities were noted, and then some > consolidation was attempted and aligned using the proposed x.8.y codes. > There is to date no actual implementation of this, and no information about > how agents that observe these codes during SMTP transactions (i.e. senders) > would respond to them. That is to say: There's no implementation at either > end yet. > > I think that's fine for Informational or Experimental, but this draft is > seeking Proposed Standard status. I'd like to see the results of some > implementation experiments at least.
Yup, me too. I'd also be curious how the most common MTAs (sendmail, postfix, exchange, etc) react to reply codes they've never seen before. They /should/ handle 'em gracefully, but there could be surprises. There's been some talk on one of the MAAWG lists about this, but it's members-only; I'll encourage the participants to repost their comments here. -- J.D. Falk <[email protected]> Return Path Inc
