Email Clients: Mozilla Thunderbird
How to configure your Mozilla Thunderbird email client to work with your web-based email account

Step 1: Open Thunderbird and select the Tools menu. Click the Account Settings tab

Step 2. From the new window select the Add Account button, then E-mail account
           and click Next.

Step 3: Enter your name as you would like it to appear in the From: field of all
           outgoing mail and the email address which the others will use to send email
           messages to you. Click Next.

Step 4: Please set the incoming server to be of type POP. Address is yourdomain.com

Step 5: Click Next and type in the username. Please use the full e-mail account
           name. Example: you@yourdomain.com instead of you.

Step 6: After clicking the Next button, please type in the name of the e-mail
           account as it will appear on your PC. Click Next, and then the Finish button.

Step 7: Click the Outgoing Server(SMTP) in the left pane. Use yourdomain.com
           as Server name set the port to be 2525.

Then, check Username and password and enter the full e-mail address as username. Select No in the Use secure connection section.

Step 8: Click OK and you are done!

Please make sure that you check your incoming e-mail messages before trying to send any. Our servers use the POP-before-SMTP scheme, which disallows sending messages without checking your mail.