Mac Mail is taking >20% CPU usage - any ideas how to diagnose/fix?

[jbg232]

My computer has been acting slow and when I started up activity monitor noticed that mac mail is taking between 20-40% of CPU even when idling with windows closed. Any idea as to why or how to diagnose/fix this problem?

Thanks.

 

[GGJstudios]

My computer has been acting slow and when I started up activity monitor noticed that mac mail is taking between 20-40% of CPU even when idling with windows closed. Any idea as to why or how to diagnose/fix this problem?

Thanks.

Have you tried quitting Mail and relaunching it? Restarting your computer? I'd try that first.

 

[jbg232]

Have you tried quitting Mail and relaunching it? Restarting your computer? I'd try that first.

Yes, did those two things.

 

[GGJstudios]

Yes, did those two things.

You might try removing/re-adding your mail accounts. Also, you could trash your plist and relaunch Mail. The .plist is located here:

/Users/yourusername/Library/Preferences/com.apple.mail.plist​

Also try setting up a new user account on your Mac and see if the same issue presents itself while logged into the new account.