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RFC 4409, "Message Submission for Mail", April 2006

Note: This RFC has been obsoleted by RFC 6409

Area Assignment: app

Errata ID: 2393
Status: Held for Document Update
Type: Editorial
Publication Format(s) : TEXT

Reported By: Alfred Hoenes
Date Reported: 2006-05-16
Held for Document Update by: Peter Saint-Andre
Date Held: 2010-07-24

Section 7 says:

The list of SMTP extensions provided on page 10 of RFC 4409
unfortunately is incomplete.  As far as I can see, the following
RFCs with SMTP extensions predate the publication of RFC 4409:

  o  RFC 2645  -- ATRN
  o  RFC 2852  -- DELIVERBY
  o  RFC 3865 (+ RFC 4095)  -- NO-SOLICITING
  o  RFC 4141  -- CONPERM, CONNEG
[ o  RFC 4405 ]


Quickly browsing these RFCs, I found that only RFC 4405 has
followed the specification in Section 7 of RFC 2476 (literally
carried over to RFC 4409):

Future SMTP extensions SHOULD explicitly specify if they are valid on
the Submission port.

and contains a definitive statement to this end.
RFC 4405 therefore arguably might be excluded from the list.

It would have been useful to have a complete list, with the
proper applicability keywords for the above SMTP extensions.

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