Setting up an email account in Netscape Messenger. Step 4. The new incoming mail server has now been added and appears highlighted.            Now enter the same information for the Outgoing Mail Server and click OK. You have now set up the email account. When you check your email for the first time by clicking the Get Msg... button you will be asked for your password. Provided you checked the Remember Password box you won't have to do this again. Your account is now set up.