A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : A NULL MX Resource Record for Domains that Accept No Mail
Author(s) : John Levine
Mark Delany
Filename : draft-delany-nullmx-01.txt
Pages : 5
Date : 2013-07-02
Abstract:
When the 5321.MailFrom domain in an e-mail message has a DNS MX
Resource Record (RR), it is making an explicit statement that it is
willing to accept email. However, when the domain has just a DNS A
or AAAA RR, there mail clients cannot easily tell whether the domain
accepts mail, as many hosts on the Internet advertise an A or AAAA RR
regardless of whether they want to accept email.
The NULL MX RR formalizes the existing mechanism by which a domain
announces that it accepts no mail.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-delany-nullmx
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-delany-nullmx-01
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-delany-nullmx-01
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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