Mac Mail runs CPU at 100%

Discussion in 'Mac Apps and Mac App Store' started by renbody, Aug 9, 2008.

  1. renbody macrumors newbie

    Aug 14, 2007
    When I run Mac Mail it pegs one core to nearly 100%.

    I bought my MacBook Pro about a year ago and have done every software update. It has behaved this way from the beginning. I connect to my mail server using IMAP.

    I run Thunderbird, but wanted to use the native Mac Mail. I keep hoping that an upgrade will cure this weird behavior.

    I've searched the forums, but may not have used the right search terms.

    Any ideas?

  2. DanielCalladine macrumors member

    Jul 19, 2008

    I have had the same problem with Mail running the CPU flat out. It only started a week or so ago and I can't work out what it is.

    I don't want to change to Thunderbird as I've got used to Mail now so hopefully someone will have an idea how to fix it.

    Thanks, Daniel

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