1. When Outlook Express Starts click Tools -> Accounts
2. Inside the "Internet Accounts Windows" click Add -> Mail
3. Fill in your name. Click Next.
4. Click "I already have an e-mail address that I'd like to use" and fill in your email address. Click Next.
5. On the "Email Servers Name" page, fill in the server information. "My incoming mail server is a POP3 server." The incoming and outgoing mail server should be either mail.yourdomain.com or the IP address in your setup email. Click Next
6. Put in your mailbox username (username is the FULL email address address@domain.com) in the account name field, and the password below. Click Next
7. Click Finish