I'm trying to setup Outlook/Eudora/Mozilla or some other email client and it asks for POP3 and SMTP settings.

When setting up Outlook or any other email client, use the following settings:

• POP3: mail.your_website_domain_here.com
• SMTP: mail.your_website_domain_here.com on Port 587, and NOT Port 25
• Username: your full email address: your_email_account@your_website_domain_here.com - all lowercase

We require authentication and you are required to use port 587 instead of port 25 for SMTP!