Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!ames!pasteur!ucbvax!NNSC.NSF.NET!craig
From: craig@NNSC.NSF.NET (Craig Partridge)
Newsgroups: comp.protocols.tcp-ip
Subject: re: MX Records
Message-ID: <9003212043.AA24727@ucbvax.Berkeley.EDU>
Date: 21 Mar 90 17:53:44 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 20


> Is it time yet to decree that A records should not be used in
> lieu of the MX records when delivering mail?  It would seem
> that the "transition" period is well commenced, and it is
> time to cut-over...

Philip:

    Which of the following two cases are you proposing we stamp out?

    (1) Mailers that never look for MX RRs?  [I think these folks
    have plenty of incentive to fix this -- their mailers can't
    get certain places otherwise].

    (2) Mailers that follow RFC 974 and look for an A RR if an
    MX RR doesn't exist. [There are folks who say this is a convenient
    shorthand, that spares them the need to enter all those MX
    RRs when they aren't needed].

Craig