I have multiple users experiencing sync errors with Outlook and office365. Another which is Microsoft Outlook Email Repair Tool Online shown below, is a user opens a new message, or replies to one, and lets it sit for a while. When they go back to the message and press send they get an error that the message has been deleted. Ive repaired the OST and changed cache mode to only cache 1 year. Incorrect Outlook settings can also be one of the reasons behind Outlook synchronization errors.

• 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.
• 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.
• We have shared five manual methods in this blog to resolve the Outlook syncing errors.
• If it does, you might need to include Outlook exceptions in the settings of your security program.
• This blog talks about the causes behind Outlook synchronization errors and a few solutions to fix Outlook sync issues.
• However, I cannot find any reason why his account would do this only on our domain nothing is blocking our connection to Office 365.

7 Customer support

If the problems do not occur in safe mode, its most likely an add-in causing grief. 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).

Fix Sync Issues and Local Failures in Microsoft Outlook: Problem Resolved!

However I do not use Outlook on it as much as I do on my desktop. Outlook’s ability to connect to the mail server may be blocked by firewalls or antivirus software. After you’re satisfied, turn off your firewall or antivirus program for a while.

Disable Add-ins

But setup is a little complicated and it can sometimes be difficult to identify the source of problems. We have resources to help you identify potential issues and fix them. The Support and Recovery Assistant, a tool provided by Microsoft, can identify and resolve common Outlook problems.

Check for Local Failures

It is capable of automatically identifying problems with account setups, sync, and other typical mistakes. To solve your Outlook issues, download the application from the Microsoft website and follow the directions. We’ve had sync issues with employees from time to time however, re doing the mail profile resolve Outlook not sending emails fast 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. Now, we will verify the server settings to fix the Outlook synchronization error. After the files get repaired, restart the Outlook program to ensure that the Outlook syncing issues are resolved or not.



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.



The other solution to fix Outlook sync issues is recreating Microsoft Outlook profile. Follow each step carefully to resolve synchronization errors. There are various methods to resolve the Outlook sync issues, including manual and third-party solutions. Firstly, we will discuss a few manual methods fix Outlook after Windows update issues 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.