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ornlgeorge Author

Level 1

25 points

Can't connect Gmail to Macmail (Sonoma 14.2.1 on M3 MacBook Pro)

I have two Gmail accounts that appear to have identical configurations. One is added with no problems to Macmail but the other keeps failing. Both accounts work fine in a browser and on iOS phones. Have tried each alone without the other account.

Mail >

Accounts >>

Add account...>>

Google >> (Google requires authentication in web browser) >>

Open Browser >> (This opens Safari and Sign in with Google) >>

I sign in with no issues on either account. But one Gmail account goes directly to populating the email. The other comes back with a "Continue to sign in request" in Safari, where clicking to continue or cancel brings a 400 error.

I have examined both Google mail accounts and cannot find any consequential difference between them.

Thank you for any advice you can provide!

MacBook Pro 14″, macOS 14.2

Posted on Dec 21, 2023 9:44 PM

Top-ranking reply

bosmacs

Level 1

8 points

Posted on Jan 5, 2024 4:34 AM

The issue appears to be Safari's "advanced tracking and fingerprinting protection". Go to Safari's Settings -> Advanced and uncheck "Use advanced tracking and fingerprinting protection".

After this I was able to re-authenticate my Google account without the 400 Bad Request error. Once the account is reconnected, you can enable the option again.

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41 replies

Feb 9, 2024 7:58 AM in response to bosmacs

THANK YOU!!

McSurely

Level 1

8 points

Feb 9, 2024 2:31 PM in response to bosmacs

OMG - After 100 (Kidding on the Number) trys - This worked, thank you, thank you, thank you!!! I never use Safari except on I phone anyway!

Feb 9, 2024 9:25 PM in response to bosmacs

thank you! this has been a life saver!

5quinns

Level 1

8 points

Feb 10, 2024 11:54 AM in response to ornlgeorge

I’m having this same problem on a 2015 Mac running Monterey. Where can I find this setting?

Feb 11, 2024 5:58 AM in response to ornlgeorge

Try making Chrome your default browser and see if that works.

deb1900

Level 1

12 points

Feb 11, 2024 6:21 PM in response to Orbit2020

thank you thank you thank you!!! I have spend hours... you are very kind in sharing your solution . the one above didn't help me .This was immediate. Deep appreciation.

Feb 12, 2024 8:35 PM in response to ornlgeorge

Can't tell you how much time you saved me after I wasted hours trying to log on after changing my google password. Google's support notes were less than useless. Thanks so much!!