User Administrators can't see Spam tab on their email accounts

[BizMarquee]

I did search for this first but didn't find anything...

I setup a user who is an "Administrator" for a specific domain. When he logs in, he does not see a Spam Filter tab like I do when I login as the main Plesk Admin. I don't see an option for this in the user roles, and he's at the highest level (Administrator) I can assign. How can I make it so that Domain Admins can control the spam filters for the email accounts under their domain/subscription?