Not receiving emails on my gmail account using Outlook Classic

Hello

Many users seem to have this issue recently. Microsoft is still investigating this issue. The current workaround is published here: https://support.microsoft.com/office/users-get-errors-0x800ccc0e-0x800ccc0f-synchronizing-gmail-and-yahoo-accounts-in-classic-outlook-e5a7b684-7c5c-4848-ab2d-d48291451f67

The Gmail account in classic Outlook is failing to connect to the server, so Outlook cannot sync folders or send/receive for that account.

Use these steps focused on classic Outlook + Gmail:

1. Confirm Outlook is online
   • In classic Outlook, check the status bar at the bottom for Working Offline.
   • If it shows Working Offline, go to the Send/Receive tab and select Work Offline to turn it off.
2. Verify internet connectivity
   • Open a web browser on the same PC and confirm normal internet access.
3. Check Gmail IMAP settings
   • The error is on “Synchronizing subscribed folders”, which uses IMAP.
   • In Gmail’s web settings, verify IMAP is enabled as described in Google’s article Add Gmail to another email client. If IMAP is disabled, Outlook cannot connect.
4. Re‑add the Gmail account in classic Outlook (uses the updated sign‑in flow)
   • Recent changes in Gmail/Outlook authentication were fixed by an Outlook update; re‑adding the account forces the new flow.
   • Close Outlook.
   • Open Control Panel → Mail → Email Accounts….
   • On the Email tab, select the Gmail account and choose Remove.
   • Still on the Email tab, select New.
   • Enter name, Gmail address, and password in the Password and Retype Password boxes, then select Next.
   • Follow the prompts to complete setup. A browser window may open for Google sign‑in and consent. Finish and select Finish.
   • Restart Outlook and test Send/Receive.
5. Ensure Outlook is updated to a fixed build
   • The Gmail sign‑in issue is resolved in Outlook for Microsoft 365 builds listed in the article. Make sure Office is updated to at least Version 2404 (Build 17531.10000) or later in the appropriate channel so the new browser‑based sign‑in is used.

If, after these steps, the BigPond account continues to work but Gmail still fails with the same error, remove and re‑add the Gmail account again and recheck IMAP status in Gmail, as the error indicates Outlook still cannot reach Gmail’s IMAP server.

References:

• Troubleshoot Outlook email setup
• I can't send or receive messages in Outlook
• Unable to sign in or add a Gmail account to classic Outlook
• gmail accounts no longer working in outlook classic - Microsoft Q&A