Last Updated: September 10, 2024
ISSUE
When you try to sync a Gmail account in your Outlook profile or add a Gmail account, you may get one of the following errors.”
“The browser or app may not be secure.”
Adding a Gmail account to Outlook, you may get this error:
“We weren’t able to set up your Google account with IMAP. You may need to make changes to your Gmail settings.”
This error above can also occur if you do not have IMAP enabled for your Gmail account. Google is in the process of removing that control, but it is still there in account settings for some users. For more information, please go to Add Gmail to another email client.
STATUS: FIXED
The Outlook Team released a fix that changes the sign in to open another browser window which addresses the issue. The fix is now available in the following channels and builds:
Beta Channel: Version 2404 (Build 17531.10000) Current Channel Preview: Version 2404 (Build 17531.10000) Current Channel: Version 2404 (Build 17531.10000) Monthly Enterprise Channel: Version 2407 (Build 17727.10000) Semi-Annual Enterprise Channel (Preview) – TBD Semi-Annual Enterprise Channel - TBD
If you temporarily switched to an Insider Channel to workaround the issue you can use the same steps to switch back to Current Channel.
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Set a registry key that enables a toggle in the backstage - Switching between Microsoft 365 Apps for Business/Enterprise, Current, Preview and Beta Channel (Office Insider) without re-installing. Go to "Method 2: Registry: InsidersLabBehavior".
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Run a registry key that switches directly - Use a registry command to install Microsoft 365 Insider on Windows devices. After you run the registry key, restart Outlook then select File > Office Account > Update Options > Update Now.
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