Setting up an email account in Netscape Messenger. Step 3. Now select the Mail Server tag and hit the Add button. A pop-up dialogue box will appear. Enter the Server Name (e.g. planetnovell.com) and User Name (this is often the same as the part of your email address that comes before the @ symbol). Also make sure the Remember Password box is checked unless you wish to restrict access to your email for security or privacy reasons. Hit OK when you've finished to return to the Preferences box.