ietf-822
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Re: host vs hostname (Was: CID: and MID: URL schemes)

1995-11-02 12:39:13
On Thu, 02 Nov 1995 11:24:03 PST, Barton E. Schaefer said:
No, but RFC1123 specifies in sections 2.1 and 5.2.17 that domain literals
"whose content ... is a dotted-decimal host address" MUST be accepted by
mailers as a valid host identifier.

And this wording implies that other domain literals are at the mailer's
discretion.  Note that it does *not* say that "mailers MAY NOT accept
domain literals whose content is NOT a dotted-decimal host address".

                                Valdis Kletnieks
                                Computer Systems Engineer
                                Virginia Tech