If you have not already done so, create the desired email account in your cPanel interface under Email Accounts.
Start Outlook and navigate to Tools → Account Settings and click the New… button.
Click Next on the window that comes up. Select the Manually configure server settings or additional server types checkbox and click Next and again on the next page (Internet E-mail should be selected).
Details should be entered on this page as follows:
You can now click the Test Account Settings button to ensure you have typed everything correctly. Both tests should result in success. If the outgoing server test fails and you are certain you have typed everything correctly, please see our ISP port block section below.
Click Next then Finish. That's it, you are now done!
To enable SSL for your incoming an outgoing servers, click the More Settings button while on the main account setup page. Select the Advanced tab and change the following settings (yours should look similar to the image below when done):
Click OK, test your settings, and then finish the setup. Note that unless you have purchased an SSL certificate for your mail server, you will get a warning that your certificate was unable to be verified when starting Outlook. This is normal, and your connection is still secure! If you wish to purchase a certificate for your mail server to guarantee the identity of your mail server, please contact us.
Many residential ISPs block the SMTP (outgoing) port 25 in an effort to eliminate spam originating on their networks. This poses a problem for individuals who have custom mail servers, but fortunately there is a workaround! The first would be to enable SSL for your outgoing mail server as described in the SSL setup section above.
The second is to use an alternate port for your SMTP server. Depending on the type of client you are will determine how this is done.
Select the More Settings button, navigate to the Advanced tab, and change the Outgoing Server (SMTP) value to 26. That's it! Refer to the image above under SSL Setup for a visual on how to get to this screen.
The extra step here is to enable an extra copy of your mail server (Exim) on another port. To do so, log into the WHM of your server (http://yourdomain.com/whm) and navigate to the Service Manager section. Tick the box under Enabled for Exim on another port and change it to your desired port (26 is default/preferred). Once this is saved, follow the instructions for shared clients above!