Manually reinstall Apple Mail Plugin - HowTo?

  1. Quit Mail.
  2. Quit DEVONthink 3.
  3. Enable Full disk access in System Preferences > Security & Privacy for DEVONthink 3
  4. In the Finder, hold the Option key and choose Go > Library .
  5. Go into the Mail/Bundles folder and delete the DEVONthink.mailbundle .
  6. Relaunch DEVONthink 3 and install the Mail plugin from the DEVONthink 3 > Install Add-Ons .
  7. Relaunch Mail and enable the plugin via Apple Mail’s Preferences > General > Manage Plug-ins .

Note: You shouldn’t be running 2 and 3 simultaneously.

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