* Kirill Miazine <km-lists@???> [2003-11-19 22:50]:
> * John Dalbec [2003-11-19 16:14]:
> > What RFC allows an MX record (example.com -> mail.example.com say) to exist
> > without an A record for example.com existing?
> No RFC forbids such behaviour.
How about that one? ;-)
http://www.dns.net/dnsrd/rfc/rfc2181.html#10.3.%20MX%20and%20NS%20Records
| The domain name used as the value of a NS resource record, or part of
| the value of a MX resource record must not be an alias. [...]
| This domain name must have as its value one or more address records.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| Currently those will be A records, however in the future other record
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| types giving addressing information may be acceptable. It can also have
| other RRs, but never a CNAME RR.
Additionally, I'm pretty sure any domain whose MX RR entry doesn't have
an A RR will be welcome by the rfc-ignorant.org team for listing in at
least their postmaster.rfc-ignorant.org DNSBL. *eg*
Dominik
