This blog talks about the causes behind Outlook synchronization errors and a few solutions to fix Outlook sync issues. We have shared five manual methods in this blog to resolve the Outlook syncing errors. Apart from this, we also discuss the Shoviv OST to PST Converter Tool, a professional way to repair, recover, and convert Outlook data files. This solution will be repair PST file without data loss beneficial for users who are facing Outlook syncing issues because of corrupted PST or OST files.

Turn off Windows Defender Security Center

If there's a feature you think is missing from the Mail and modern authentication troubleshooting Calendar apps, or if a feature in isn't working properly, you canprovide feedback directly to the Mail and Calendar team. Two-factor authentication helps protect your account by making it more difficult for someone else to sign in. It verifies your identity using your password and a contact method (also known as security info). If you would like to ask me another question in the future or follow up on your current question, you can add me as a favorite Expert.

Check if two-factor authentication is turned on for your account

Once the client started using Outlook again after some time has passed the issue had come back. I ran the PSTscan tool to check for anomalies on the OST file (which it found and repaired but the issue still occurs). I’ve tried to set cache mode from 1 year all the way down to a few days.

Check Antivirus and Firewall Settings

• Before we know the solutions, we will understand a few common causes of the Outlook sync problem.
• 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.
• Additionally, you might want to make a new profile and make it the default to see if it fixes the problem.
• Moreover, it maintains the folder hierarchy and metaproperties of the data when processing Outlook data files.
• There are various methods to resolve the Outlook sync issues, including manual and third-party solutions.
• The Mail and Calendar apps for Windows 10 don't support two-factor authentication.
• Now, we will verify the server settings to fix the Outlook synchronization error.

You'll have the option to do that on your "My Questions" page by clicking the heart icon labeled My Favorite. Please reply with your results when you have completed the steps above. Additionally, you might want to make a new profile and make it the default to see if it fixes the problem. However, his OST file is not anywhere near that size it’s about 5GB. I was wondering if anyone had some insight into an issue I am having with FixTechGuide login issue guide a client. The service typically takes less than 30 minutes to provision a user or to sync changes for a user.

Free Methods to Remove Duplicate Items in Outlook 2016

Here is the strange part I tried to remove the computer from the domain and have Outlook run from a local account for a few days. I’ve been in contact with Microsoft they had me migrate his account\data to another server this did not fix it. I’ve tried the Microsoft office uninstall tool provided by Microsoft (which deletes more items then just control panel uninstall).