I know this is an acient post but I figured it was better than creating a duplicate. This issue really should be addressed. I have secondary monitoring for my SMTP server but it would be nice to keep things in Kaseya. This seems like an easy feature to implement and would be beneficial to many users. Keeping email up is almost everyone's top priority.
never seen this thread before, but i agree this is on my wishlist too !
I'll second (third, fourth) this notion!