On Sat, Apr 08, 2023 at 12:16:30PM -0700, Doug Hardie via Postfix-users wrote:
> >> Are there any others and how close am I? > > > > > > https://www.iana.org/assignments/mail-parameters/mail-parameters.xhtml#mail-parameters-7 > > Wow, I never would have guessed there would be that many. Thanks. For SMTP (as opposed to LMTP), you were only off by a factor of ~2, there's a second "base" value of "UTF8SMTP". The full set for SMTP is: SMTP Simple Mail Transfer Protocol [RFC5321] ESMTP SMTP with Service Extensions [RFC5321] ESMTPA ESMTP with AUTH [RFC3848] ESMTPS ESMTP with STARTTLS [RFC3848] ESMTPSA ESMTP with both STARTTLS and AUTH [RFC3848] UTF8SMTP ESMTP with SMTPUTF8 [RFC6531] UTF8SMTPA ESMTP with SMTPUTF8 and AUTH [RFC4954][RFC6531] UTF8SMTPS ESMTP with SMTPUTF8 and STARTTLS [RFC3207][RFC6531] UTF8SMTPSA ESMTP with SMTPUTF8 and both STARTTLS and AUTH [RFC3207][RFC4954][RFC6531] These are correctly used in Postfix and a few other MTAs, and then there's Microsoft, where even the basic atom syntax is violated: with Microsoft SMTP Server or MessageLabs: with AES128-GCM-SHA256 encrypted SMTP c.f. https://www.rfc-editor.org/rfc/rfc5321#section-4.4 Protocol = "ESMTP" / "SMTP" / Attdl-Protocol Attdl-Protocol = Atom ; Additional standard names for protocols are ; registered with the Internet Assigned Numbers ; Authority (IANA) in the "mail parameters" ; registry [9]. SMTP servers SHOULD NOT ; use unregistered names. other violations are less severe: with HTTP with mapi with bizsmtp with ngmta ... Apparently, reading RFC5321 and RFC5322 is too tedious. -- Viktor. _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
