Sometimes, Outlook sync issues can arise because of poor internet connection. If you are still facing this issue, kindly follow the solutions below to fix the sync issues in FixTechGuide Office 365 troubleshooting Outlook. 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.

Turn off Windows Defender Security Center

It also provides the option to export the Outlook OST file into Office 365 and Live Exchange mailboxes. This software also has a splitter option to split large-sized PST files into smaller ones, helping users prevent oversized PST file issues. 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. We’ve reset cached Exchange mode had sync issues with employees from time to time however, re doing the mail profile or wiping the Windows profile usually fixes it. In some cases setting up a new computer replacement was the only option to fix these odd Outlook Sync issues.

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

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. These are the only two I've seen have this issue and I was wondering if you've seen this and figured out a 'fix'? Tempted to create a Test Shared Mailbox, but thinking that wouldn't be an accurate test for inbound mail, etc. or just actually tested by the Users at all.

Check Antivirus and Firewall Settings

• I’ve tried the Microsoft office uninstall tool provided by Microsoft (which deletes more items then just control panel uninstall).
• It is possible for a corrupted Outlook profile to impede synchronization.
• Incorrect Outlook settings can also be one of the reasons behind Outlook synchronization errors.
• I’m at wits end and Microsoft stopped helping me because they feel the problem is on our end.
• It verifies your identity using your password and a contact method (also known as security info).
• Once the client started using Outlook again after some time has passed the issue had come back.
• Here, we will discuss the five manual methods to fix sync issues in Outlook or OWA.
• To fix the issue, please try each of the following solutions in order.
• If you still can't sync your email after removing your account and adding it again, you might need to add the account using advanced setup.

However, in some situations these processes can take up to 24 hours. We're in the process of migrating from On-Premise Exchange to O365. I Fix Outlook and Office365 Sync Issues have a couple of Users and a Shared Mailbox that were migrated and both Users are experiencing issues with the Shared Mailbox updating on a regular basis.

Free Methods to Remove Duplicate Items in Outlook 2016

Check the software documentation to learn how to temporarily turn it off. There are various methods to resolve the Outlook sync issues, including manual and third-party solutions. Firstly, we will discuss a few manual methods to resolve this Outlook error and share the stepwise procedure of each method to successfully fix synchronization issues. Now, let us start with the manual processes to fix Outlook syncing errors. Firewalls and antivirus software might prevent you from syncing your email and calendar events. These syncing problems usually happen because of issues like a damaged Outlook profile, poor internet connection, or a corrupted OST file.