For domains registered at HostGator, MX records have to be updated within the HostGator user interface.
Please follow the instructions:
1. Log in to your HostGator cPanel.
2. In the HostGator user interface, scroll down to Mail.
3. Click on MX Entry.
4. Select the domain for which you wish to change MX records in Change MX Entry.
5. Enter information from your HostPapa email services setup.
6. Click Change.
Changes to MX records can take up to 48 hours to take effect. Send a test email to check if the changes were implemented.
For further questions, or if you need help, please open a support ticket from your HostPapa Dashboard. Click here to learn how to do it.