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Manage Plug Ins missing in Mail

Manage Plug Ins is missing in Mail Preferences. I tried the Terminal solution found elsewhere in Support (sudo defaults write “/Library/Preferences/com.apple.mail” EnableBundles 1), etc. I get the Password icon, put in my administrator password, and it looks like terminal is starting a new command. I type defaults write com.apple.mail EnableBundles -bool true and restart Mail and still Manage Plug Ins does not appear in General Preferences. I repeat in Terminal and restart computer. Still no joy. Anyone got the answer? Mac OS Catalina 10.15.7.

MacBook Pro 13″, macOS 10.15

Posted on Aug 17, 2021 2:49 PM

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Question marked as Top-ranking reply

Posted on Aug 20, 2021 8:54 AM

This solution came from BusyMac. The second step was what actually resolved the problem. See the portion near the end for OS 10.15 Catalina.

https://support.busymac.com/help/47350-activity-list#troubleshooting


macOS 10.15 Catalina

The Mail application should be able to reset its DataVaults folder:


  • Quit the Apple Mail application
  • Open the Terminal app from the /Applications/Utilities folder
  • Paste in this command (without the quotes): "defaults delete com.apple.mail EnableBundles"
  • and press Return
  • Open the Apple Mail application and quit it again
  • Paste in this command (without the quotes): "defaults write com.apple.mail EnableBundles -bool YES"
  • and press Return
  • Open the Apple Mail application
  • In Mail > Preferences > General > Manage Plug-ins… enable the plug-ins you want to use

If asking Mail to reset the folder DOES NOT work, you need to delete the DataVaults folder manually. Mail will recreate it once you enable a new plug-in. You will need to temporarily turn off System Integrity Protection (SIP) so that you get permission to delete the protected DataVaults folder.


  • You may want to print these instructions or open them on a second device
  • Click on the Apple menu and choose Restart…
  • Hold down the Command and R keys so that your Mac will reboot in Recovery Mode
  • From the Utilities menu at the top of the screen, choose Terminal
  • Type (without the quotes): "csrutil disable"
  • and press Return. This command turns off SIP
  • Click on the Apple menu and choose Restart…
  • In Finder, hold the Option/Alt key as you click the Go menu
  • Select Library from the Go menu
  • From your Library folder navigate to ~/Library/Containers/ com.apple.mail/Data 
  • Drag the ~/Library/Containers/ com.apple.mail/Data/DataVaults/ folder to the Trash
  • Open the Apple Mail application
  • In Mail > Preferences > General > Manage Plug-ins… enable the plug-ins you want to use
  • Repeat steps 2. - 7. typing "csrutil enable" instead to turn SIP back on


8 replies
Question marked as Top-ranking reply

Aug 20, 2021 8:54 AM in response to Peter A.

This solution came from BusyMac. The second step was what actually resolved the problem. See the portion near the end for OS 10.15 Catalina.

https://support.busymac.com/help/47350-activity-list#troubleshooting


macOS 10.15 Catalina

The Mail application should be able to reset its DataVaults folder:


  • Quit the Apple Mail application
  • Open the Terminal app from the /Applications/Utilities folder
  • Paste in this command (without the quotes): "defaults delete com.apple.mail EnableBundles"
  • and press Return
  • Open the Apple Mail application and quit it again
  • Paste in this command (without the quotes): "defaults write com.apple.mail EnableBundles -bool YES"
  • and press Return
  • Open the Apple Mail application
  • In Mail > Preferences > General > Manage Plug-ins… enable the plug-ins you want to use

If asking Mail to reset the folder DOES NOT work, you need to delete the DataVaults folder manually. Mail will recreate it once you enable a new plug-in. You will need to temporarily turn off System Integrity Protection (SIP) so that you get permission to delete the protected DataVaults folder.


  • You may want to print these instructions or open them on a second device
  • Click on the Apple menu and choose Restart…
  • Hold down the Command and R keys so that your Mac will reboot in Recovery Mode
  • From the Utilities menu at the top of the screen, choose Terminal
  • Type (without the quotes): "csrutil disable"
  • and press Return. This command turns off SIP
  • Click on the Apple menu and choose Restart…
  • In Finder, hold the Option/Alt key as you click the Go menu
  • Select Library from the Go menu
  • From your Library folder navigate to ~/Library/Containers/ com.apple.mail/Data 
  • Drag the ~/Library/Containers/ com.apple.mail/Data/DataVaults/ folder to the Trash
  • Open the Apple Mail application
  • In Mail > Preferences > General > Manage Plug-ins… enable the plug-ins you want to use
  • Repeat steps 2. - 7. typing "csrutil enable" instead to turn SIP back on


Manage Plug Ins missing in Mail

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