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Email Sync Problems

How to Remove or Reset a Connected Gmail Account in Outlook on the Web

John WilsonJohn Wilson Oct 21, 2026 868 views

Question details

Users need to remove or reset a Gmail account connected to Outlook on the web to resolve sync errors, but struggle to locate the correct settings.

How to Remove or Reset a Connected Gmail Account in Outlook on the Web
Product
Outlook on the web
Device & OS
not provided
Scenario
Attempting to troubleshoot email sync issues and manage connected external mailboxes within the web interface.
Observed behavior
The connected Gmail account triggers a 400 Bad Request error in the web version, and the 'Connected accounts' option is often entirely missing from the Sync email settings.
Before you start

Ensure you are logged into your Microsoft 365 account through a web browser and verify whether you are using a personal, work, or school account, as administrator policies often restrict sync settings.

Solution 1Recommended

Remove Account via Standard Sync Email Settings

Navigate through the standard Outlook settings menu to locate and disconnect your problematic Gmail account.

1
Open Outlook Settings

Click the Settings (gear) icon in the top right corner of the Outlook on the web interface.

2
View All Settings

Scroll to the bottom of the settings pane and click 'View all Outlook settings'.

3
Access Sync Email

In the left sidebar, navigate to 'Mail' and then select 'Sync email'.

4
Remove Connected Account

Under the 'Connected accounts' section, hover over your listed Gmail account, click the Delete (trash can) icon, and save your changes.

Remove Account via Standard Sync Email Settings
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Frequently Asked Questions

Why do I get a 400 Bad Request error with my synced Gmail?

This error usually occurs when the authentication token between Outlook and Google expires or becomes corrupted. Removing and re-adding the connected Gmail account typically refreshes the token and resolves the issue.

Why is the 'Connected accounts' option missing in my Outlook settings?

Microsoft has removed the ability to connect new accounts to Outlook on the web for certain Microsoft 365 plans. If you only see POP/IMAP and Email aliases, the feature is completely disabled for your specific plan or managed by your IT administrator.

Can I still access my Gmail through the Outlook mobile app if the web connection fails?

Yes, the Outlook Mobile app for iOS and Android handles account connections directly on the device rather than via the Microsoft cloud server. Your Gmail can continue to function perfectly there even if the web version fails.