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Why is mail running so slow

Have the latest IMAC, running Mountain Lion, did migration from an almost identical mac, 2-years older, the mail program and filling out form boxes on web pages is a friggin nightmare, is aplle working on a solution? I see al ot of similar complaints.

Mac Pro, OS X Mountain Lion

Posted on Aug 17, 2012 12:41 PM

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46 replies

Jul 15, 2015 9:13 AM in response to ccops

Maybe someone is interested in:

I got a similar problem with Mail.app in Mac OS X 10.10 Yosemite and a surprising solution.

It took about up to 2 minutes to start Mail.app and display my messages in my 11 accounts. Too long, so i started with deleting/reorganizing the envelope index but with only less effect. It still took about 1 minute to get the Mail-Window, although the messages were now displayed instantly.

Disappointed I quit Mail again and I saw the accounts window closing after the Mail.app main window and I thought: "Maybe that's the solution!"

So I reopened Mail.app (2 minutes ;-) and opened the tucked away accounts window (It was always behind the main window of Mail.app for some 5 days, since I changed a setting!) and closed it properly.

Now Mail.app opens instantly again! 🙂

I hope this helps some other having the same strange problem.

Why is mail running so slow

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