1. After loading Netscape Messenger, choose Edit -> Preferences
2. Click Mail & Groups - > Identity
3. Add your personal information.
4. Click on Mail Server.
5. You probably do not need to change the Outgoing Mail (SMTP) Server. The SMTP server should be the server of your local access provider. However, if you want to use your domain as the smtp server you can. Type "mail.yourdomain.com"  with no quotes and replace "yourdomain.com" with your information.
6. You should enter yourdomain name for "incoming mail server".
7. Put your username in the Mail server user name box.