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I have been using outlook to access my 4 gmail accounts for years. I use classic because I use SimplyFile to manage my emails. SimplyFile does not work in New Outlook
Two days ago the gmail connection stoppd working
Apparentlt google has changed authentication methods
Hos do I get it working again
Using classic Outlook for Windows in business environments
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How do I talk to a live person to fix my outlook problem?? I have wasted so much time trying to get outlook to display my Gmail account!! What is the telephone number to TALK to a knowledgeable person??
@Wayne Hove said
What is the telephone number to TALK to a knowledgeable person??
If you would please, first see my Answer below (Hornblower409 Mar 9, 2026, 9:06 PM) on the Support Bulletins that have been published by Microsoft on this problem. They contain the steps for possible workarounds.
If this does not help, you can contact Microsoft Support in a number of different ways:
Customer service phone numbers
https://support.microsoft.com/en-us/topic/customer-service-phone-numbers-c0389ade-5640-e588-8b0e-28de8afeb3f2
If you have a MS 365 Subscription:
https://www.microsoft.com/en-us/microsoft-365/support
Otherwise, you can use Chat Support
Hi Hornblower409. Thanks for the information. I will try what you have suggested if it happens again.
After the issue I had in 4th Jan that could only be fixed by restorning my VM to a previous state, my Outlook worked fine for 2 months. Then, suddenly on Mar 4th, 1 of my 4 gmail accounts refused to connect. I was seeing the errors you are now including in the links to your Mar 9 post
The only way I could get it to work again was to install "Google Workspace Sync For Microsoft Outlook" (GWSMO) for the account that would not connect - which worked. In fact GWSMO works better than setting up an IMAP sync.
The only "problem" is that when you install GWSMO it creates a new Outlook profile - and you can only have one GWSMO sync per profile. SO if you have multiple IMAP accounts in one Outlook profile you either have to have multiple GWSMO/Outlook profiles or, as in my case where only 1 of 4 IMAP accounts werent working, you have the problem account syncing with GWSMO and then you setup the others again in the profile using normal IMAP
@Ivan Glaser said
The only way I could get it to work again was to install "Google Workspace Sync For Microsoft Outlook" (GWSMO)
Thanks for the report. Using GWSMO instead of an IMAP Sync - neat trick.
Unfortunately for most people following this thread, this is only available for Google Workspace subscribers.
FYI, I run Windows as a VM. What I did was restore my VM from a backup I had 1 week ago. After restoring my VM, Outlook worked perfectly. This means that either a windows update or an Office update that got installed on Jan 1 made a change which caused gmail to stop working in outlook
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Hi Ivan Glaser
Thank you very much for your response and update.
I am happy to hear that the issue has been resolved by restoring the backup from one week earlier.
I will keep an eye on this and provide suggestions similar as yours if someone has the same issue while trying to connect to Gmail account on classic Outlook (in VM).
AI answer
If your Gmail accounts have stopped working in Outlook Classic, it's likely due to changes in Google's authentication methods. Google has moved towards using OAuth for authentication, which may affect how you connect your Gmail accounts to Outlook.
To resolve this issue, you should:
Make sure that IMAP is enabled in your Gmail settings as well, as this is required for Outlook to connect properly. You can enable IMAP by going to Gmail settings, selecting the Forwarding and POP/IMAP tab, and ensuring that Enable IMAP is selected.
If you continue to experience issues, consider creating a new Outlook profile specifically for your Gmail accounts, as mixing account types can sometimes lead to problems.
References: