Flagit! brings multi colored flags to Mail.app. Create as many custom flags as you need - of any color and with any label. Flagit! also allows you to "mark" emails as completed, keeping track of when the flag was set and when it was marked as completed.
- [FIX] Mailbox coloring menu had disappeared on some systems. Fixed.
Mac OS X 10.5 - Mac OS X 10.6.8