The following is a walk-through for setting up Outlook Express.
(a) Go to 'Tools' -> 'Accounts...' -> 'Add...'
(b) Display Name: (as you wish) // Next ->
(c) Email Address: (xxxx@domain.com) // Next ->
(d) My incoming mail server is a [POP3] Server.
(e) Incoming Mail (POP3, IMAP, HTTP) server: [yourdomain.com]
(f) Outgoing Mail (SMTP) server: [yourdomain.com]
(g) Account Name: (xxxx@domain.com) (same as email address)
Password: as appropriate
(h) Log in Using Secure Password Authentication is NOT checked.
(i) Click 'Next' and 'Finished'
(j) Click 'Properties' -> 'Servers' Tab
(k) Click Apply, OK.
and test the email.