- Start->Programs->Administrative Tools->Manage Your Server.
- Click on Add or remove a role.
- This will start the Configure Your Server Wizard. Read the text and make sure you have connected all the necessary cables and all the other things it says you should do before continuing.
- Click Next
- The wizard will now detect your network settings.
- Click Mail server (POP3, SMTP)
- Click Next
- Specify the type of authentication and type the email domain name
- Click Next
- Click Next
- The installation will start, and will also start the Windows Components Wizard.
- Click Finish
- Click Start, then run, and type p3server.msc
- Click on
in the left pane - Click on Server Properties in the right pane
Referrence: http://www.ilopia.com/Articles/WindowsServer2003/EmailServer.aspx