An MX record is used by a mail server to route incoming email. Changing your MX record is usually done to redirect email to a remote server. It can also be used as a temporary backup in case the local mail server goes down.
-Click the MX Entry icon under the Mail section.
-Choose the domain for which to change the MX record.
-Give the MX entry a priority between 0 and 10. The priority dictates in what order connecting to mail server locations should be attempted. The lower the number, the higher the priority.
Note: Entering a priority that is already being used will replace the pre-existing MX entry.
-Enter the domain of the remote mail server.
-Click on the Change button to complete the process
Your MX Records are now updated.