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MailPluginFix will help you to fix any incompatible plugin after an update of OS X. It patches all broken plugins with the current UIDs and also enables them again.

What's New

Version 1.3.0:
  • 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 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


  • OS X 10.6 or later

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4.8 29


Current Version (1.x)


Downloads 24,584
Version Downloads 998
License Free
Date 21 Sep 2016
Platform Intel 64 / OS X
Price Free
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