At 10:40 21-12-2009, The IESG wrote:
The IESG has received a request from an individual submitter to consider
the following document:
- 'The Eternal Non-Existence of SINK.ARPA (and other stories) '
<draft-jabley-sink-arpa-02.txt> as a BCP
The IESG plans to make a decision in the next few weeks, and solicits
final comments on this action. Please send substantive comments to the
The other stories are in Section 3 of this draft. :-) Please update
the SMTP protocol reference to RFC 5321.
If I understood the story, it is to get compliant MTAs not to attempt
mail delivery to domains which do not wish to accept mail. This does
not really solve the implicit MX question but that's another story.
Here's some text from Section 5.1 of RFC 5321:
"If MX records are present, but none of them are usable, or the
implicit MX is unusable, this situation MUST be reported as an error."
"When a domain name associated with an MX RR is looked up and the
associated data field obtained, the data field of that response MUST
contain a domain name. That domain name, when queried, MUST return
at least one address record (e.g., A or AAAA RR) that gives the IP
address of the SMTP server to which the message should be directed."
As the intended status of this draft is BCP, it may have to take into
consideration the above text from RFC 5321 and see how to resolve the issue.
Regards,
-sm
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