- Mail tab is missing in the subscription menu.
When clicking Mail Settings at Domains > example.com > Mail tab, the following warning message is shown:
Warning: Permission Denied
Mail management functions are disabled in global mail settings.
Go to Tools & Settings > Mail Server Settings.
Select the checkbox Enable mail management functions in Plesk.
Click OK to apply the changes.
Note: If you are a Plesk Partner, in case Mail service for the license is disabled in Partners Central, activate it to prevent the issue from happening again.