When i think back, I enabled email archiving feature right around the time when I upgraded to catalina. I am hopeful this was the cause of all my pain. The console stopped spitting out 50 errors a second and for the past 3 hours my computer has been running quite smoothly. Once this was disabled I noticed an immediate drop in CPU back to normal levels. During the CPU Spike I logged into my Exchange control panel and tried one thing. Accountsd and other processes going nuts.

So after I did the above, all worked well for about 6 hours. If you need Contacts and Calendars, go to System Preferences > Internet Accounts, select your Exchange account and enable the services you need to sync. Ĭlose Preferences and restart Apple Mail. Make sure both Internal and External URLs are set to. Uncheck “Automatically manage connection settings”. Select your Exchange account and click on Server Settings tab. Start Apple Mail and go to Preferences > Accounts. You will be able to add it later (see below). Uncheck everything (like Contacts, Notes, Calendar etc) and leave only Mail checked. Go to Internet Accounts, click on +, select Exchange, enter your name and email address.Ĭlick on Configure Manually and enter your password.

Restart the Mac and uncheck “Reopen windows when logging back in” to make sure Apple Mail won’t start after rebooting. Go to System Preferences > Internet Accounts.ĭelete ~/Library/Mail and ~/Library/Containers/ folders (this will reset Apple Mail and its preferences). Make a backup of Apple Mail messages if you store anything locally (like storing something On My Mac, downloading via POP3 etc). Here are his very detailed instructions – Heck, this is the End of Decade update! And this one thanks to read Maxim Ellenberg – he tried the following steps and was able to get permanent relief.

Reset apple mail preferences