My company has an Exchange 2000 server running on W2K server. We have only been using it for internal mail and have been using an outside company to host our internet mail. Due to a recent problem with this company I have been instructed to investigate taking control of our email. I purchased a domain for testing, changed the A record to point to the WAN address of my firewall, and set a rule to route SMTP to the internal address of my exchange server. Now for the questions!
What should I be pointing the MX record for the domain to? Should it be pointing to mail.domainname.com or some reference to my internal server?
Should I change the default DNS addresses that come with register.com or should I change them to the ones provided by my ISP?
I have already added the domain in recipients on the exchange server.
Anyone have a link to a simple how to guide for setting something like this up?
Basicly I have an internal mail server and a firewall. I want to send mail from outside to the internal mail server. I've tried sending mail to the new domain and this is the response I'm getting.
Permanent Failure: Bad destination system address
Obviously I've got something wrong.
Thanks for the help!