I like to use Mail.app rules to move incoming emails into individual mailboxes. The rules work fine, but "notifications" don't seem to be working correctly now. If I get a new email addressed to anyone of the 4 email addresses I have that does NOT fit into any of the rules, it appears in the notification center and the message counter shows up on the Mail icon in the Dock. But, if a new email comes in and a rule moves it to one of my other mailboxes all I get is the new email audible - nothing in the notification center nor message count on the Dock icon. Because of this I have missed several incoming emails when I had my volume turned down. Solution: This thread got few responses, but a lot of views so I thought I bring it back and post the real solution. This is actually a "feature" which is editable by the user. Mail > Preferences > General: Change the "New Message Notifications:" to "All Mailboxes"