Allow Rules to run AppleScripts
So I get that with Sandboxing, there's aspects of the "run applescript" option in Rules that wouldn't work so well. Obviously, talking to non-office/non-ms apps wouldn't work too well.
But, there's a lot of use for this within Outlook itself, or to do things that would be allowed. For example, I just ran into someone who has to rebuild a workflow that used the ability to run AppleScripts from rules to handle a really complex set of forwarding conditions. That never leaves outlook, sandboxing wouldn't affect that.
There's a lot of stuff that could be done with this that sandboxing wouldn't cause a lick of problems for, so bringing it back wouldn't suck.