sendmail and reverse lookup

[Jim Reid]

>>>>> "Matthew" == Boex,Matthew W <Matthew.Boex at cna.com> writes:

    Matthew> we are having a problem with a domain sending mail to us.
    Matthew> we can send mail fine to them.  i can do a forward mx
    Matthew> lookup on their domain, rlicorp.com, and it resolves to
    Matthew> mail.rlicorp.com with an ip of 63.105.174.67.

The reverse name for this IP address (67.174.105.63.in-addr.arpa) is a
CNAME for 67.64.174.105.63.in-addr.arpa. The name servers at UUnet say
64.174.105.63.in-addr.arpa zone is delegated to hodnsrv1.rlicorp.com
and hodnsrv2.rlicorp.com. So far, so good. However there are no
entries for either of these names in the rlicorp.com. That means
nobody knows where to find hodnsrv{1,2}.rlicorp.com and therefore
can't resolve 67.64.174.105.63.in-addr.arpa. I've Cc'ed the whois and
SOA contacts for rlicorp.com so hopefully they will fix this error.
It would be nice if they found another name server for rlicorp.com
too: there's only one listed!