Adding new domain in mail server

[Giorgos Keramidas]

On Thu, 19 Mar 2009 14:49:52 +0800, Ruel Luchavez <ruel.freebsd at gmail.com> wrote:
> Hi list..
>
> we have here a mail server running in FreeBSD 6.2 which is holding out
> 2 domain (e.g user at mydomain.com. who at mydomain2.com) and it running
> very good, unfortunately I'm not the person who configure this mail
> stuff.
>
> heres my problem:
>
> we bought a new domain (e.g mydomain3.com) and Im planning to add the
> domain to our mail server so that I could create a new email ad with
> the new domain (e.g user3 at mydomain3.com). how will I do that?

Multiple domains are often called "virtual domains".  The specific
details of how virtual domains work depend a bit on the mail server
software you are using.

Does the server run Sendmail, Postfix, or...?