Why does Set Up Mail Client recommend the server's hostname?

Question

Why does Set Up Mail Client recommend the server hostname?

Answer

The Set Up Mail Client interface in cPanel recommends the server's hostname when an email account's domain does not have a valid SSL certificate installed. If the email account's domain has a valid SSL installed, the interface will recommend the email account's domain.

You can set a domain up with a free AutoSSL with the instructions here:

How to install an SSL using AutoSSL

Certain permissions issues on the server may also cause this to happen, which you can review here:

Permissions issue prevents "Set Up Mail Client" from recommending the server's hostname

Additional Information

Please see our documentation for more information on the Set Up Mail Client Interface:

cPanel & WHM Documentation - Set Up Mail Client