I start using Mail.app today. I have two Gmail accounts (one free hosted and one on Google Apps). In Mail.app I created two IMAP accounts according to the official Google manual.

But when somebody send my a mail, I receive two copies of it: one copy in each inbox. Could somebody please explain me what's going on here?

Thanks in advance for your help.

Best, Andrej

  • Are your accounts set to forward to each other? Are you sure you set them both up, not one of them twice? When you get the dual emails, to which account were they sent? – Cajunluke Feb 15 '11 at 22:23
  • 1) No. 2) Yes. 3) Same behavior on both accounts. – Andrej Feb 15 '11 at 22:26
  • Have you tried deleting and re-adding one of them? – Cajunluke Feb 15 '11 at 23:23
  • Tried multiple times, but problem still persist. – Andrej Feb 16 '11 at 5:53
  • Solved: need to use full email address whenever you're asked for username. – Andrej Feb 16 '11 at 17:10

To flesh out an answer from your comment in case other people encounter this problem...

You need to provide the full e-mail address as the username. If you have two accounts with different domains and the same local part and you only specify the local part as the username, it can cause problems.

  • First.Last@gmail.com
  • First.Last@company.com

It may appear that both accounts are 'working' (as in no connection errors) but really it is just connected to the same account twice causing the double messages as you described.

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