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The Inbox Repair tool scans the .ost or .pst file and makes sure that the file structure is intact. The tool also tries to repair the internal data structures, if it is necessary. The tool does not interact with your mailbox on the Exchange Server. 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.

Methods to fix Microsoft Outlook syncing error
By following these methods step-by-step, you can restore full email synchronization without reinstalling Outlook. FixTechGuide continues to help users resolve Outlook and Office 365 errors quickly and safely. There are various methods to resolve the Outlook sync issues, including manual and third-party solutions. Now, let us start with the manual processes to fix Outlook syncing errors.
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- The tool does not interact with your mailbox on the Exchange Server.
- Outlook and Office 365 sync issues can be frustrating but are almost always fixable.
- If Outlook syncs fine now, re-enable add-ins one by one to find the culprit.
- The OST Integrity Check Tool does not change your mailbox on the Exchange Server.
- Outlook lets you manually control which folders sync with the server.
- The scan log also identifies any situations that the tool could not resolve and that you must fix manually.
- Any problems are noted in a message that has "OST Integrity Check" as its Subject.
This issue usually happens when Outlook cannot properly connect or sync with your mail server. In this FixTechGuide tutorial, we’ll explore the causes and give you clear, step-by-step solutions to fix it fast. Now, we will verify the server settings to fix the Outlook synchronization error. Incorrect Outlook settings can also be one of the reasons behind Outlook synchronization errors.

Step 4: Repair the Outlook OST File
If these methods do not resolve the issue, we recommend that you rebuild the .ost file. To do this, delete the .ost file, and then let Outlook download the information again from Exchange Server. For more information, see Outlook Login Issues Troubleshooting the More information section of this article. After performing these steps, Outlook’s all folders will be synced to the server.
Step 10 – Rebuild Offline Cache (OST)
If this method doesn’t work for you, navigate to other solutions. work offline mode stuck Before you dive into folder sync issues, read our complete Outlook and Office 365 Sync Guide for an overview of how synchronization works. By limiting synchronization to active folders, Outlook finishes updates faster and avoids timeouts. Use the OST Integrity Check Tool (Scanost.exe) to check your .ost file for inconsistencies. When these symptoms occur, or you have other problems synchronizing, the problem might be a corrupted .ost file. Users can also convert OST files into various file formats, including PST, HTML, EML, MSG, vCard, etc.
Disable Automatic Folder Subscription
Before we know the solutions, we will understand a few common causes of the Outlook sync problem. Re-adding the account forces Outlook to rebuild all folders and clear old Outlook stuck updating folders solution stuck subscriptions. To view the scan log, start Outlook, and then open the Deleted Items folder. Any problems are noted in a message that has "OST Integrity Check" as its Subject. After these instructions, ensure the sync settings are correct and check everything is working well.