Changing this from an Idea to a Problem as it doesn't work like it should.

If you restrict Domain Management, it shouldn't stop an Admin from managing the server, viewing logs, etc.

There is one more thing with Domains section. I didn't reported that since this is not a big problem but sometimes when you need to do something quickly or SmarterMail is experiencing high CPU usage getting to Manage -> Troubleshooting -> Services (I always start lowering CPU usage by stopping Indexing service from SmarterMail interface) could take some time. It is default section when you move to Manage tabs (even if you have been in Spool before going to Settings and returning to Manage it loads again Domains section). When you have a lot of Domains configured under SmarterMail it is taking some seconds to load (5.5k domains -> 3.7s but in high CPU usage scenario it is taking way longer).

@Webio, good point!  Another reason for moving Domains to its own tab. Be sure to vote this thread up.