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Updated to Big Sur and outgoing mail stoped working

iMac 21.5″, macOS 11.0

Posted on Nov 15, 2020 11:20 AM

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Question marked as Top-ranking reply

Posted on Nov 19, 2020 2:39 PM

Boot into Safe Mode by booting with the Shift key held down and check there to see if the problem persists.  Reboot normally and test again.


NOTE: Safe Mode boot can take up to 10 minutes as it's doing the following; 

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts 

• Deletes font caches, kernel cache, and other system cache files


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