Outlook Express E-mail Setup Instructions
Step 1 - Open Outlook Express and go to the Tools menu.
Step 2 - Choose Accounts. Click the Add button and select Mail.

Step 3 - Type in the display name.
Step 4 - Type in your e-mail address.
Step 5 - Select POP3 for your incoming mail server. For both incoming and outgoing mail type in mail.yourdomain.com. (make sure to substitute your actual domain name)
Step 6 - For Account name type in your full e-mail address. Type in your password and make sure that "Remember password" is checked.
Step 7 - Click Finish. But you are not done yet, please see below.
Step 8 - Once you click Finish above the screen below will be present. Select the account you just setup and double click on it.
Step 9 - Click on the Servers tab as shown below. Make sure that "My server requires authentication" is checked. Click Apply and then OK.
Step 10 - Click Close. And then close Outlook Express.
Step 11: Open outlook express up and compose an e-mail to the account you just setup. Click send and receive once to send it, wait a minute or so then click send and receive again. You should receive the e-mail you just sent. That's it, you're done!