Mail 6.0 in Mountain constantly uses 100% CPU power???

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Level 1

16 points

Mail 6.0 in Mountain constantly uses 100% CPU power???

Hi,

I have upgraded to Mountain Lion and it would be perfect if there was one major issue fixed: when having Mail.app open, this application uses between 80 to 110% of the CPU power constantly. The main issue is reduction of speed of other operations but more concerning is that fan colling fan just runs endlessly.

Has anyone experienced such issue? The activity Monitor shows that Mail uses all processing power.

I use a macbook 13' (unibody) and Mail has an Exchange mail account active (and the iCloud email). After upgrading I recreated all mailboxes (by deleting the V2 folder), server setting is using SSL and no SASL.

Could it be a bug or something in the server settings/account setting?

Y.

MacBook Pro, Mac OS X (10.7.3)

Posted on Jul 30, 2012 4:03 AM

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Answer 1

Yaann Author

Level 1

16 points

Jul 30, 2012 12:19 PM in response to Yaann

Quick update:

the problem is only occuring when plugged into an Exchange network. When accessing from outside, then the app works normally.

Seems to be linked to Network connections and settings!

It was not the case with Lion.

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Answer 2

Jul 30, 2012 12:25 PM in response to Yaann

Yaan,

Others have reported that one of their email accounts (besides their icloud email) was causing this issue. They deleted the account out and the problem fixed it. Some people have reported adding it back and didnt have the problem.

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