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The other solution to fix Outlook sync issues is recreating Microsoft Outlook profile. Follow each step carefully to resolve synchronization errors. Sometimes an error appears in the Mail and Calendar apps when Outlook profile repair and recovery steps the apps try to sync new email or calendar events. We’ve had sync issues with employees from time to time however, re doing the mail profile or wiping the Windows profile usually fixes it.
Method 4: Recreating the Outlook Profile
However once I joined this computer back to the domain and let it sit for a few days it was also working fine. Once the client started using Outlook again after some time has passed the issue had come back. I’ve tried to set cache mode from 1 year all the way down to a few days. If your password isn't the problem, you might have a certificate error. If so, you'll see a message that says, "There is a problem with the server's security certificate. The security certificate Outlook stuck updating folders solution is not from a trusted certifying authority."
Check the connectivity to your email server
Before finding solutions, we suggest that users check their internet connection.After the files get repaired, restart the Outlook program to ensure that the Outlook syncing issues are resolved or not.If your password isn't the problem, you might have a certificate error.If users are facing syncing issues in Outlook due to corrupt Outlook data files, they must choose a professional tool, like Shoviv OST to PST Converter Tool.Two-factor authentication helps protect your account by making it more difficult for someone else to sign in.After performing these steps, Outlook’s all folders will be synced to the server.The Mail and Calendar apps for Windows 10 don't support two-factor authentication.Moreover, it maintains the folder hierarchy and metaproperties of the data when processing Outlook data files.This can happen for days at a time, and then disappear for a day or 2, only to appear again.
When the user is signed into their mobile app, webmail, or the Outlook OST vs PST repair Windows Mail app, they are able to receive email perfectly fine with those. The issue is occurring only in the Outlook program installed on Windows. To update from Azure AD Sync to Microsoft Entra Connect, see the upgrade instructions.
Methods to fix Microsoft Outlook syncing error
If the size of your .ost file is close to the limit, you could try increasing the limit on your client, restart Outlook and see if there is any difference. If you're using an Outlook.com, Microsoft 365, or Exchange account, you won't have advanced mailbox settings unless the account was set up using advanced setup. The client has a computer off the domain at home that his work email is tied to and he has never had any of these issues in Cache mode with that device. I’ve unchecked download shared folders when setting up a new Outlook profile. Check with your email provider for instructions about how to create an app password for your email account. The Mail and Calendar apps for Windows 10 don't support two-factor authentication.
Microsoft Outlook Sync issues
Always make sure your profile and settings are set up correctly, your software is up to date, and your connection is steady. The causes of sync issues and local failures in Outlook are explained in this guide, along with practical troubleshooting and resolution techniques. You can extract and recover all of your mail items to a PST file using sophisticated OST File to PST Converter software if your OST file becomes unavailable or orphaned. Third-party firewalls or antivirus software might prevent you from syncing your email and calendar events. Check the software documentation to learn how to temporarily turn it off.