I recently discovered a way to sort my Entourage contents via last correspondence date.
What this means is that you can quickly determine which unnecessary contacts you have gumming up your Address book, and quickly get rid of them.
Let’s put it this way, if you haven’t sent an email to someone in over a year, chances are you ain’t never going to send them another one.
To sort by last correspondence date do the following:
1. In Entourage, tab to your Address Book
2. Display the Last Correspondence column: View -> Select Columns -> Last Correspondence
3. Highlight the Last Correspondence column to sort it by date.
From there, you can delete away.