I have a status dashboard for general IT Services such as Exchange, remote sites etc.
Generally most of these groups are pointed at a group of servers etc.
I am using 2010 - is it possible to somehow configure the exchange group so that it also monitors mailbox databases and if a problem change the status of the group monitor to red?
Do you see the status of the mailboxdatabase in scom?
If you see them in a view in scom you can check the scope of that view and use the same group in your dashboard.