1 Fixing problems with directory synchronization for Microsoft 365 Microsoft 365 Enterprise Microsoft Learn
Carley Mcewen edited this page 2025-12-09 14:16:52 +00:00

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So, follow the below disable faulty add-ins in Outlook steps to reset Microsoft Outlook settings. After the files get repaired, restart the Outlook program to ensure that the Outlook syncing issues are resolved or not. Outlook sync issues can be because of corrupted Outlook OST or PST files. Therefore, now we will know the steps to repair the Outlook data file.

Method 4: Recreating the Outlook Profile

If you still can't sync your email after removing your account and adding it again, you might need repair corrupted OST in Outlook to add the account using advanced setup. For more information, see Add an account using advanced setup. Now, we will verify the server settings to fix the Outlook synchronization error. Knowing the reasons behind the Outlook sync issues will help us to fix this problem and prevent issues in communication and workflow.

Check the connectivity to your email server

We have shared five manual methods in this blog to resolve the Outlook syncing errors.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.An app password is used instead of your normal account password for apps that don't support two-factor authentication.Once the client started using Outlook again after some time has passed the issue had come back.When they go back to the message and press send they get an error that the message has been deleted.

When the user is signed into their mobile app, webmail, or the Fix Outlook Not Opening After Windows Update 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

To solve your Outlook issues, download the application from the Microsoft website and follow the directions. If I check the sync log I see a lot of sync errors for Inbox, sent items and a few other folders. The most common cause of an out-of-date account is an incorrect password. In the notification bar at the top of the app, select Fix account. If your password is incorrect, you'll see a message asking you to update your password.

Microsoft Outlook Sync issues

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. This software allows users to process numerous OST files at once without any size limitations. Moreover, it maintains the folder hierarchy and metaproperties of the data when processing Outlook data files.