10.6.5 Snow Leopard Update Breaks Letterbox Mail.app Plugin – Quick Fix

For you Letterbox - Mail.app plugin lovers out there here is a quick fix to get you back it working in 10.6.5 Snow Leopard. First off you will need the new "SupportedPluginCompatibilityUUIDs".

  1. 857A142A-AB81-4D99-BECC-D1B55A86D94E
  2. BDD81F4D-6881-4A8D-94A7-E67410089EEB

Then you will need a program to edit info.plist files. If you have developer tools installed you will use Property List Editor if not you will need a program that will edit an .xml file like my favorite Texwrangler.

PRIOR TO THE FOLLOWING PLEASE CLOSE MAIL.APP

Next you have to find and edit the info.plist for [...]