Unable to view or modify MX records in cPanel Zone Editor

Symptoms

Users are unable to see or add MX records in "Zone Editor" in cPanel.

Description

For users to see, edit, or add MX records, the "Zone Editor (A, CNAME, MX)" and "Email Routing (MX Entry)" features have to be enabled in their account's feature list.

Workaround

1. Log into WHM as the ‘root’ user.
2. Navigate to "Home / Packages / Feature Manager."
3. Select the feature list to modify from the "Manage feature list" dropdown menu.
4. Click the "Edit" button.
5. Enable the "Email Routing (MX Entry)" option.
6. Click the "Save" button at the bottom of the page.

Additional rescources

Feature Manager: Create and edit a feature list

How to edit a feature list