A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Applications Area Working Group Working Group of the IETF.
Title : A NULL MX Resource Record for Domains that Accept No Mail
Authors : John Levine
Mark Delany
Filename : draft-ietf-appsawg-nullmx-01.txt
Pages : 6
Date : 2014-05-20
Abstract:
Internet mail determines the address of a receiving server through
the DNS, first by looking for an MX record and then by looking for an
A/AAAA record as a fallback. Unfortunately this means that the A/
AAAA record is taken to be mail server address even when that address
does not accept mail. The NULL MX RR formalizes the existing
mechanism by which a domain announces that it accepts no mail, which
permits significant operational efficiencies.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-appsawg-nullmx/
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-appsawg-nullmx-01
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-appsawg-nullmx-01
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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