Does anyone know how to bug test Mac Mail?

Each time I open it, it starts to hog resources and shows thousands and thousands of "incoming mail messages".

I certainly do not have any email arriving...

I use IMAP accounts mostly with Google accounts and on Mavericks 10.0.3

  • I'm seeing the same problem with a different mail provider. What septup do you have exactly? What's your directory structure on the affected mail account?
    – B. Martin
    Oct 8, 2014 at 12:04
  • Please add the following info. within your OQ (Original Question): [return] • How many messages do you have on Gmail? [return] • Did your first Mail connection on Gmail end correctly?
    – dan
    May 24, 2017 at 8:23

1 Answer 1


If you've just set up Mail, it will attempt to download all the mail that it can find from your mail server. This can't be configured in Mail, only in the mail server/provider's settings.

For gmail - set IMAP sync off for just about all your mailboxes to let one sync start. Once you have a clean sync - then re-enable IMAP sync for the others.

Keep in mind, your Mac will download every mail that google has locally if you don’t prune the list or disable sync for things like archive folders, etc...

  • This has been an ongoing problem for about a year now... I will check in google apps if there is an option somewhere...
    – HappyCoder
    Jul 23, 2014 at 19:56

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