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From: Craig_Everhart@TRANSARC.COM
Newsgroups: comp.soft-sys.andrew
Subject: Re: AMDS post office machine
Message-ID: <oc3keT=0BwwOI4E1Qu@transarc.com>
Date: 19 Apr 91 15:19:59 GMT
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Paul Traina reminded me that all hosts are now required to do MX
vectoring (rfc1123 paragraph 5.3.5, quoted below), so it should no
longer be necessary to have a PO machine with the same name as the cell
name, except to accommodate ``broken'' mail senders.

		Craig

from RFC 1123:

>       5.3.5  Domain Name Support

>          SMTP implementations MUST use the mechanism defined in Section
>          6.1 for mapping between domain names and IP addresses.  This
>          means that every Internet SMTP MUST include support for the
>          Internet DNS.

>          In particular, a sender-SMTP MUST support the MX record scheme
>          [SMTP:3].  See also Section 7.4 of [DNS:2] for information on
>          domain name support for SMTP.