Hi there --

We have a sendmail server in operation and I noticed that an alias of the server does not appear to be working.

The server is known by two names, and when I do an nslookup of both names, the output indicates that both names appear to be configured on the internal network DNS servers. However, when I do the same using an external DNS server, the alias comes back as a non-authoritative record.

The problem that I am seeing is the following: If I send an e-mail to alias of the server from a remote host, the message does not get through. The message does get through if I am on the server itself.

I'm guessing the non-authoritative record on the external DNS server is causing this, but before I go there I wanted to know if there is something else I should check. Thanks.