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MailPluginFix will help you to fix any incompatible Mail.app plugin after an update of OS X. It patches all broken plugins with the current UIDs and also enables them again.
What's New
- Added support for macOS 10.12 Sierra. Important: macOS 10.12 is a major update and many mail plugins are not yet compatible with the new Mail.app. Before trying to fix a plugin, check for an official plugin update and don’t forget to backup!
- Added toolbar button for opening the Mail library folder
- Fixed info-window width
Requirements
- OS X 10.6 or later




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