How does the cPanel Email Routing Automatic setting detect how to configure the domain name?

In some cases, you may see the cPanel Email Routing option for Automatically Detect Configuration set to an option that you did not expect.

The system uses the following criteria to configure the email routing settings:

Local Mail Exchanger — The lowest numbered mail exchanger points to an IP address on this server.
Backup Mail Exchanger — The lowest numbered mail exchanger points to an IP address not on this server.
Remote Mail Exchanger — No mail exchangers point to an IP address on this server.

Note:

If the configured Mail Exchange (MX) records do not resolve, automatic detection will not occur.

More details about email routing on our website here:

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