In ,
Tim Tuples typed:
We have a deidcated server with a fixed IP (e.g =202.34.123.45)
and a running mail server but NO domain associated with it.

I tried to send several times from serveral mail accounts from all
over the world emails to an eMail account on this server (e.g. to
). Unfortunately this doens't work.

The SMTP mail delivery system seems to need a domain name and NOT an
IP. Why?

For web pages I can write http://202.34.123.45
Why is such a trick not possible for emails ?

Tim

What you're looking for is referred to as "acceptance of domain literals"
(see RFC1123). Without knowing anything about your mail server, I couldn't
possibly guess how to set it up (nor whether your senders' servers will like
it, even if you do).

Seriously, I would just register a domain name and start using it. It
doesn't cost much, and if this server isn't just a plaything//lab/home
server, it's well worth it.

PS: I noticed you'd set the followup-to to a single group, the
winxp.network_web one - if you want people to be able to participate in the
thread, best not to do that. At any rate, this isn't a WinXP issue.