Weird Mail error in Catalina

Tech Support
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1

Hey all,

Catalina and iOS 13 have been an absolute disaster for me, Reminders on all of my devices are completely out of sync, and Siri is no longer able to add reminders into the app on any device. Yay!

Now, I also get this weird error message when I try to open Mail. It didn’t start until I upgraded to Catalina

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I have only used 300 GB of 1TB on my hard drive. Anyone know what the heck this means? I can’t even use Mail, it just forces me to quit it.

2

Remove the account from the System presences > internet accounts.

Remove the content of the Mail folder in ~/Library

Restart the Mac, and add the Email account again.