Validate Email Setup and Ports

Check that the ports used on the incoming and outgoing mail servers are correct. If the ports are incorrect, the email client might not be able to authenticate or just return connection errors.

Non SSL Settings (Used by most clients)
SSL Settings
Incoming Server: mail.your-domain.com
Outgoing Server: mail.your-domain.com
Username: Your full e-mail address
Password: Your e-mail account password
Incoming Port: POP3 110 or IMAP 143
Outgoing Mail server (SMTP) Port: 587 or port 25
SSL: NO
SMTP Authentication Required
Secure Authentication or SPA needs to be turned off
Incoming Server: mail.your-domain.com
Outgoing Server: mail.your-domain.com
Username: Your full e-mail address
Password: Your e-mail account password
Incoming Port: POP3 995 or IMAP 993
Outgoing Mail server (SMTP) Port: 465
SSL: YES
SMTP Authentication Required
Secure Authentication or SPA needs to be turned off