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macOS Sierra - Apple Mail - can't access Gmail

Since updating to Sierra, my Apple Mail has not been able to log in to Gmail. At first Mail asked for my Gmail password on every startup but, now it doesn't ask for the password and I can't find any place in Apple Mail or Internet Accounts to enter the password.


Anyone else ?

iMac, macOS Sierra (10.12), late 2009, Core i5, 2.66Ghz, 12Gb

Posted on Sep 29, 2016 11:19 PM

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42 replies

Oct 24, 2016 7:17 AM in response to Garry Brooke

Had the same issue and I looked at my other iMac that was stopped at Yosemite.

System Preferences select internet accounts.

you might find that the Google is no longer listed as an account so create a new one .

Enter all the requested login password stuff.

Then select the new Google listing and turn on mail in the right hand selector list, again answer the login information.

My Gmail accounts instantly showed up in Sierra mail.

Oct 24, 2016 10:58 AM in response to mhandzelewicz

You should be using Gmail as IMAP not POP. Apple Mail will want to setup as IMAP not POP. You might need to adjust your settings in your browser by logging into your Gmail account > Settings > Forwarding and Pop/IMAP. I suggest you uncheck POP and activate IMAP.


When you add Gmail account back as IMAP, all messages on the Gmail server including any labels that have messages will be downloaded. Most likely you will not need the exported data from your current POP default folders. However depending on how you deleted messages, you should export your current data.


Note: A Gmail 'label' is a folder in Mail.


When you remove a POP account it also deletes the messages in the default folders (Inbox, Drafts, Sent, Trash, Junk). It does not delete any messages stored in the local "On My Mac" folders.


Export your POP default folders:

  • Select the folder in the sidebar.
  • Under Mailbox in the Menu bar, select Export Mailbox...


User uploaded file


There is no progress bar. However the name will contain "partial" until it is complete.

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macOS Sierra - Apple Mail - can't access Gmail

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