The other solution to fix Outlook sync issues is recreating Microsoft Outlook profile. Follow each step carefully to resolve synchronization errors. Sometimes an error appears in the Mail and Calendar apps when FixTechGuide Office 365 troubleshooting the apps try to sync new email or calendar events. We’ve had sync issues with employees from time to time however, re doing the mail profile or wiping the Windows profile usually fixes it.

Method 4: Recreating the Outlook Profile

If two-factor authentication is turned on for your account, you'll need to create an app password for that account. An app password is used instead of your normal account password for apps Outlook Login Issues Troubleshooting that don't support two-factor authentication. Before you begin, make sure that your device has the latest operating system and app updates. Try the general troubleshooting solutions in Troubleshooting Mail and Calendar apps for Windows 10. Once you have completed the steps to fix Outlook sync errors, kindly check if the error has been fixed or not.

Check the connectivity to your email server

• If you're using an Exchange account that requires advanced settings, you'll need to remove the account and add it again using advanced settings.
• Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
• If two-factor authentication is turned on for your account, you'll need to create an app password for that account.
• It verifies your identity using your password and a contact method (also known as security info).
• If your password is incorrect, you'll see a message asking you to update your password.
• If you are still facing this issue, kindly follow the solutions below to fix the sync issues in Outlook.

You'll also receive a mail (to the alternate email and to your admin email) from Microsoft rebuild Outlook data file quickly 365 that indicates your tenant has encountered directory synchronization errors. For details see Identify directory synchronization errors in Microsoft 365. I still have it turned on on my laptop and it has not shown any issues yet.

Methods to fix Microsoft Outlook syncing error

I ran the PSTscan tool to check for anomalies on the OST file (which it found and repaired but the issue still occurs). However, with one particular client no matter what changes are made these sync issue still occur. We're sorry you're having problems with the Mail and Calendar apps for Windows 10. To fix the issue, please try each of the following solutions in order.

Microsoft Outlook Sync issues

I’ve tried the Microsoft office uninstall tool provided by Microsoft (which deletes more items then just control panel uninstall). Below are the steps I’ve taken to try to resolve this issue. 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). Outlook will show as connected to Exchange but is not receiving any new email. This can happen for days at a time, and then disappear for a day or 2, only to appear again.