There wasn't an intuitive way to search on submitted ideas, so I am submitting my own. I think there should be a similar Automail function for Requirements much like there is for Defects. Can we get some upvotes on this?!?
There's 'Send Email To' option in Alert Rules on requirement change for some basic scenarios, and in addition more flexible and customized auto-mail can be achieved by workflow.
This is a useful feature and I vote for this