accountsd (mail) process and CPU usage.

[Tygernoot]

- 5 reboots
- 1 new temp account
- logged into Apple Music only on temp account => back on 400% accountsd
- logged out of AM
- reboot
- no accountsd on new temp account
- switched to main account => full accountsd
- logged out
- reboot
- logged in to main account => no accountsd

Good for another day until the issue comes back again I guess

 

[tassoskoz]

Hi guys.
I experienced this issue two weeks ago in my Mac Book Pro, after I upgraded to version 10.15.7.
I read all the comments in this thread and I called Apple support.
They acknowledge the problem and together with support we troubleshooted the issue.

There are two solutions, one temporary and one permanent:
- Temporary: As many others have pointed out: sign-out from AppleId, resolves the issue temporarily, until you sign-in again.
- Permanent: Reset NVRAM on your Mac

Reset NVRAM on your Mac - Apple Support

If one or more settings stored in NVRAM don't work as expected on an Intel-based Mac, resetting NVRAM might help.

support.apple.com

They did not justify, why this resolves the issue, but it worked.

After I reseted the NVRAM on my Mac I have not seen the issue again.
Four "clean" days have passed.