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 FixTechGuide fix for stuck folders beneficial for users who are facing Outlook syncing issues because of corrupted PST or OST files.

Turn off Windows Defender Security Center

If the size of your .ost file is close to the limit, you could try increasing the limit on your client, restart Outlook and see if there is any difference. expert Outlook tips by FixTechGuide I’ve unchecked download shared folders when setting up a new Outlook profile. After performing these steps, Outlook’s all folders will be synced to the server. If this method doesn’t work for you, navigate to other solutions. Select the button below to launch a diagnostic in the Microsoft 365 admin center.

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

It is possible for a corrupted Outlook profile to impede synchronization. Test other programs or websites to be sure Outlook is the only problem. If the connection is poor, consider restarting your modem/router or moving to a more reliable network. If your password isn't the problem, you might have a certificate error. If so, you'll see a message that says, "There is a problem with the server's security certificate. The security certificate is not from a trusted certifying authority." Check with your email provider for instructions about how to create an app password for your email account.

Check Antivirus and Firewall Settings

• This tool also helps users fix Outlook syncing issues by repairing OST or PST files and syncing the data smoothly.
• 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.
• Test other programs or websites to be sure Outlook is the only problem.
• However, with one particular client no matter what changes are made these sync issue still occur.
• This solution will be beneficial for users who are facing Outlook syncing issues because of corrupted PST or OST files.
• I 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.
• If your password isn't the problem, you might have a certificate error.

After you’re satisfied, turn off your firewall or antivirus program online Outlook email repair utility for a while. If it does, you might need to include Outlook exceptions in the settings of your security program. 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. I still have it turned on on my laptop and it has not shown any issues yet. However I do not use Outlook on it as much as I do on my desktop.

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.