Jeff,
What MTA are you using to send your mail? Exchange?
Who hosts your DNS? Judging from `whois`, your ISP. Assuming that is
true, the name of your mail server will not effect reverse DNS lookups.
It is possible that your server is presenting its internal name during
the EHLO command and that the receiving server is rejecting the
connection because it cannot look that up, but I would consider that
situation fairly rare, and wouldn't expect much mail to go undelivered
because of it.
If you'd like, send email to
newsgroups-(E-Mail Removed) and let me
know you did so; I'll check my logs to see if there is anything
interesting there.
robert
"Jeff" <(E-Mail Removed)> wrote in message
news:12f4b01c4436d$f5b4f570$(E-Mail Removed):
> We have just replaced our old mailsweeper server, running
> NT4.0, with a new box, running Server 2003.
>
> We are running on a NT4.0 domain and utilize our ISP for
> DNS resolution. On our old server we had specified a Host
> Name (Network Settings) of 'mail' while the computer name
> was set to 'rjmime'. The new box is now following our
> server naming standards.
>
> Our problem is that quite a number of mail recipients are
> not receiving our mail. The only thing we can think of is
> that the MX record does not match. If the recipient's
> location is doing a reverse lookup it will fail.
>
> Is there anyway to set a 'hostname" within Server 2003
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