External Mail Server and Internal Network have same domain name

[dmwhittaker]

I setup a new W2K Advanced Server and called the domain xxx.com. This happens to be the same as my website domain, which is being hosted by an external company, and email server domain. Outlook is configured to send/recieve messages on mail.xxx.com. How can I keep my internal domain name at xxx.com and set up some kind of redirection to get the email traffic from mail.xxx.com?

Thanks

 

[CoolClark]

Just add a host record on your dns server pointing "mail" to the external ip address.