unread mail number on mail icon

[TraciePSFWS]

We updated our computer to a new system over the weekend (emac to a new iMac). Since then the number of unread messages shows up on the mail icon only all messages have been read. How do I get rid of the number icon? We had this problem once before when we upgraded our system but I don't remember how we got rid of it.

 

[ElDiabloConCaca]

In Mail.app's Preferences, what do you have "Dock unread count:" set to, under the "General" pane?

Perhaps there are some unread messages in your Trash or Junk Mail folder, and that option is set to show unread messages in all folders?