If your specific email client program is not listed, you can set up any other email client by using the following instructions:
-  In your email client create a new 'account' 
- 
-  For the username/account name/login, use the user name defined in the Users → Accounts page in the VPOP3 settings 
-  For the password, use the password defined for the above user, in the Users → Accounts page in the VPOP3 settings 
That's it