Philippe Cerfon: > On Sun, Dec 27, 2009 at 2:11 AM, Wietse Venema <wie...@porcupine.org> wrote: > > With "smtpd_helo_required = yes", the Postfix SMTP server requires > > HELO (or EHLO) before the MAIL, ETRN and AUTH commands (*).
> I've just tried it vor ETRN, and as far as I understand the RFC it > should not be necessary for ETRN (as well as AUTH and STARTTLS which > you named) to require HELO/EHLO. Without sending EHLO the client cannot know that the server supports ETRN, AUTH, etc., therefore such clients are not compliant. Perhaps some study of RFC 1869 is in order. > > If you disagree, then you MUST show the evidence that Postfix > > behaves otherwise. > Well,.. I do not claim that the RFC is superior in all points. I've > just read that HELO/EHLO should be only necessary for mail > transactions (=> MAIL)... q.e.d. ;-) You claimed that "smtpd_helo_required = yes" ALWAYS requires HELO/EHLO. That claim is incorrect. Wietse