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. The other solution to fix Outlook sync issues is recreating Microsoft Outlook profile. Sometimes an error appears in the Mail and Calendar apps when the apps try to sync new email or calendar events.

The client has a computer off the domain at home that his work email is tied to and he has never had any Troubleshoot Office 365 Sync and Login Issues of these issues in Cache mode with that device. 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.

• Windows Defender Security Center is free security software that's included with Windows 10.
• If your password is incorrect, you'll see a message asking you to update your password.
• The causes of sync issues and local failures in Outlook are explained in this guide, along with practical troubleshooting and resolution techniques.
• After the files get repaired, restart the Outlook program to ensure that the Outlook syncing issues are resolved or not.

How to Fix Sync Issues in Outlook or OWA? – A Complete Guide

Moreover, it maintains the folder hierarchy and metaproperties of the data when processing Outlook data files. This tool also helps users fix Outlook syncing issues by repairing OST or PST files and syncing the data smoothly. Third-party firewalls or antivirus software might prevent you from syncing your email and calendar events.

Professional automation to resolve Microsoft Outlook syncing issues

Before we know the solutions, we will understand a few common causes of the Outlook sync problem. The most common cause of an out-of-date account is an incorrect password. In the notification bar at the top of the app, select Fix account.

Method 5: Fixing Sync Issues in Outlook Web Access (OWA)

I’ve tried to set cache mode from 1 year all the way down to a few days. However, with one particular client no matter what changes are made these sync issue still occur. After these instructions, ensure the sync settings are correct and check everything is working well. To make sure there are no issues, click Test Account Settings to test the connection. Test other programs or websites to be sure Outlook is the only problem.

Delays in provisioning of user/mailbox or synchronizing changes in Exchange Online

Now, we will verify the server settings to fix the Outlook synchronization error. 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. To add the account using advanced settings, see Add an account using advanced setup.





If you paid for Office 365 and Exchange online then you should have support with them. online Outlook email repair utility Additionally, you might want to make a new profile and make it the default to see if it fixes the problem. 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. You'll have the option to do that on your "My Questions" page by clicking the heart icon labeled My Favorite.





If I check the sync log I see a lot of sync errors for Inbox, sent items and a few other folders. 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. There can be several reasons for the Outlook synchronization error.

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. Upgrade to Microsoft Edge to take advantage of repair PST file without data loss the latest features, security updates, and technical support.

Reconfigure Server Settings

However, in some situations these processes can take up to 24 hours.