On Fri, Jan 23, 2009 at 01:46:06AM -0500, John C Klensin wrote:
Question: Is it time to formally deprecate 821 and, in particular, the main feature that distinguishes it: the use of HELO by SMTP clients? We would still need to require that SMTP servers accept it, but we would tell full-capability clients (including the client side of relays and gateways) that HELO is obsolete. One corollary of this is that we'd be telling low-capability clients, particularly those that are part of MUA systems, that they should be talking to Submit ports, not SMTP ones.
I'm ok with this. Simply because EHLO's requirements for a FQDN is clearer than HELO. -- Jeff Macdonald [email protected]
