Re: IANA SMTP registry

> > why are they listed at all?  I thought SMTP extensions had to be either
> > standards-track or experimental with explicit IESG approval.
> I think those two snuck in as "de facto" - they were in Sendmail, Sendmail
> had a 70-90% market base, soooo..... ;)
yes but there was an explicit WG decision to NOT register such codes.