7053 Ent Edition. Try doing some usability testing and ask a user to find a setting. You know how long it takes to find Trusted Senders? Your UI is not very discoverable and extremely frustrating. Imagine if instead you had Spam Settings with a sub-node of Trusted Senders on the left side bar:

-Spam Settings

----Trusted Senders

It's visible in a single list where I can find and navigate to what I need. Instead I'm clicking through every admin area and looking across top nav bars, columns of options, on and on. Not ideal at all. Please reconsider this UI.