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User profile for user: nashvilledrummer
nashvilledrummer Author
User level: Level 1
8 points

Upgrade to Catalina has crippled Mac Mail

There are dozens of threads on how the upgrade to Catalina has crippled Mac Mail (one of the most basic of programs that I've used and relied on for my personal and work use). Is there an official Apple response on how to fix this program. Using Mail is crippling my CPU leaving the rest of my Mac unusable as well. Spikes to 400% when I open mail. I have a few O365 accounts routed into MAIL, several Comcast accounts as well as two gmail accounts.


I've read the Gmail accounts are the problem. I tried removing them - no dice

I've read the O365 might be the problem - again removed and no dice -

Tried zapping PRAM - no go.


Rebooted countless and countless times. Tried wiping out Mbox library - nada.


Has APPLE responded to this most basic service and why it is now Fubar?


Thanks

MDJ

Posted on Jun 5, 2020 12:55 PM

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User profile for user: Old Toad
Old Toad
User level: Level 10
210,865 points

Posted on Jun 5, 2020 1:42 PM

What Mac model and system version are you running?


Log into another user account, Set up users, guests, and groups on Mac,  and see if the problem persists. (This tells us if the problem is limited to your user account or is system wide).


Boot into Safe Mode (How to use safe mode on your Mac - Apple Support) 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 some system cache cleaning, volume verifying and directory repairing. 


Have you run any "cleaning", "optimizing", "speed-up" or anti-virus apps on your Mac?



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User profile for user: Old Toad
Old Toad
User level: Level 10
210,865 points

Jun 5, 2020 1:42 PM in response to nashvilledrummer

What Mac model and system version are you running?


Log into another user account, Set up users, guests, and groups on Mac,  and see if the problem persists. (This tells us if the problem is limited to your user account or is system wide).


Boot into Safe Mode (How to use safe mode on your Mac - Apple Support) 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 some system cache cleaning, volume verifying and directory repairing. 


Have you run any "cleaning", "optimizing", "speed-up" or anti-virus apps on your Mac?



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Upgrade to Catalina has crippled Mac Mail

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