How to Change mailbox sync settings greyed out in Windows 11


Imagine this scenario: You’re in the midst of a busy workday, trying to access your important emails, but your Windows 11 Mail app is sluggish, and your mailbox sync settings are greyed out. Frustrating, right? But fear not, as we’re about to embark on a journey to unlock the full potential of your mailbox by teaching you how to change those greyed-out sync settings. In this article, we’ll walk you through the step-by-step process, delve into potential issues, error codes, and provide both automatic and manual solutions. Let’s dive in!

Possible Issues and Error Codes

Before we delve into the solutions, let’s understand why your mailbox sync settings may be greyed out in the first place:

  1. Network Connection Problems: If your computer is not properly connected to the internet, you won’t be able to change sync settings. This can be due to Wi-Fi issues, a disconnected Ethernet cable, or other network problems.
  2. Account Configuration Errors: Incorrect or outdated account settings can prevent you from modifying sync settings. This may occur if you’ve changed your email password or security settings recently.
  3. Outlook or Exchange Server Issues: If you’re using Outlook or an Exchange server, server-side problems can cause sync settings to grey out. This includes issues on the server itself or compatibility problems with Windows 11.
  4. Corrupted Mail App: Sometimes, the Windows 11 Mail app can become corrupted, leading to various issues, including greyed-out sync settings.
  5. Windows Updates: An outdated version of Windows 11 may have bugs that affect mailbox sync settings. Keeping your OS up-to-date is crucial.

Common Error Codes (with Examples):

  • Error 0x80004005: This often indicates a network problem or issues with your account settings.
  • Error 0x85002012: It usually points to a server-related issue or incorrect password.
  • Error 0x8007042b: This can occur if the Mail app is corrupted or if there’s a problem with your Windows installation.

Now, let’s explore various methods to resolve the issue.

Different Ways to Change Mailbox Sync Settings in Windows 11

  1. Automatic Troubleshooting:
    • Windows has built-in troubleshooting tools. Go to Settings > Update & Security > Troubleshoot > Additional troubleshooters. Run the “Internet Connections” and “Windows Update” troubleshooters.
  2. Manual Configuration: a. Reconfigure Email Account: – Open the Mail app, click on your account, and go to Manage Accounts > Change mailbox sync settings. – Update your password or reconfigure the account settings.

    b. Check Server Status: – Visit your email provider’s website to ensure their servers are operational.

    c. Update Windows 11: – Go to Settings > Windows Update and check for updates. Install any pending updates.

    d. Reset Mail App: – Go to Settings > Apps > Apps & Features. – Locate and select the Mail app, then click on Advanced options. Choose “Repair” or “Reset.”


In this article, we’ve tackled the issue of greyed-out mailbox sync settings in Windows 11. We explored the potential reasons behind this problem, common error codes, and provided both automatic and manual solutions. By following these steps, you can ensure that your mailbox operates at peak efficiency, ensuring you never miss an important email again.


  1. Why are my mailbox sync settings greyed out only for one account?
    • This might be due to a specific account configuration issue. Try reconfiguring that particular account or checking for any server-related problems with that provider.
  2. Are there any third-party tools to fix mailbox sync issues?
    • Yes, some third-party tools can help diagnose and resolve mailbox sync issues, but it’s recommended to use Windows’ built-in troubleshooting and solutions first.
  3. Is it safe to reset the Mail app? Will I lose my emails?
    • Resetting the Mail app will not delete your emails. It will reset the app to its default settings but retain your email data. However, it’s always a good practice to back up important emails before making major changes.

Remember, troubleshooting may vary based on your specific email provider and configuration, so don’t hesitate to seek assistance from your IT department or your email service provider if needed.

Sakshi Anant Author