Phone calls are not available, but the Gmail issue in classic Outlook can be fixed by updating Outlook and, if needed, adjusting a few settings.
Follow these steps in order:
- Update Outlook to a fixed build
The latest Outlook builds include fixes for Gmail sign-in problems such as:
- “The browser or app may not be secure.”
- “We weren’t able to set up your Google account with IMAP. You may need to make changes to your Gmail settings.”
In classic Outlook:
- Open Outlook.
- Select File > Office Account.
- Select Update Options > Update Now.
- Let Office finish updating, then restart Outlook and try adding the Gmail account again.
- If Outlook is older and cannot be updated immediately (Gmail add fails after “Allow”)
There was a known issue where, after choosing Allow for “Microsoft Apps & Services,” Outlook showed:
“Sorry, we could not sign you in to Google – IMAP. Please try again later.” Workaround until updated:
- Open Outlook (or any Office app).
- Go to File > Office Account.
- Under Account Privacy, choose Manage Settings.
- Check Enable optional connected experiences.
- Restart Outlook and add the Gmail account again.
- If the “Allow” button on the Google consent page is greyed out
This was another known issue. Workarounds until Outlook is updated to a fixed build:
- Reboot the PC, then start Outlook and try adding the Gmail account again.
- Temporarily change the default browser in Windows (for example, switch from Internet Explorer to Edge or Chrome, or from Edge to Chrome), then add the Gmail account in Outlook. After it works, switch the default browser back.
- If you see “browser or app may not be secure” or IMAP setup errors
These errors are addressed in newer Outlook builds that open sign-in in a separate browser window. Ensure Outlook is updated to one of the fixed versions listed in the documentation. After updating, remove the failing Gmail account from Outlook (if present) and add it again.
If these steps do not resolve the issue, use the Outlook community or support options in the referenced articles for further help.
References: