1. Open Outlook.
2. Click on the "Tools" menu and then select "Account Settings."
3. From the "Email" tab, click on the "New..." button.
4. Click the "Next" button on the "Add New E-mail Account" window.
5. Check the "Manually configure server settings or addional server types" box.
6. Click on the "Next" button to continue with the Internet E-mail selection.
7. In the User Information section, enter your name and email address.
8. In the Server Information section, select the account type POP3.
9. Enter your incoming and outgoing mail servers (Ex. mail.your-domain.com).
10. In the Login Information section, enter your email address as your username and the corresponding password.
11. Click on the "More Settings" button and click on the "Outgoing Server" tab. Enable "My outgoing server (SMTP) requires authentication."
12. Click "OK" and then click on "Finish."

If you've configured everything correctly, you should be able to "Send/Receive" with no errors.