How To Fix Mail App Error Code 0x8000000b in Windows 10

If it makes you feel better, then you must know that it is a common problem encountered by several users.

0x8000000b error is a synchronization problem displayed when you try to configure your email usually Gmail. This problem can be resolved by following different methods explained in this article.

Not only this if you encounter other error codes like 0x8007042b, 0x80040154, 0x8000ffff, 0x8007000d, 0x80c8043e, 0x80070435, 0x8007006d, 0x80070425, you can fix them using the techniques explained below.

Also Read: Best Cleaning Software for Windows 10

What causes Mail Error 0x8000000b on Windows 10?

You usually face error code 0x8000000b while synching Gmail depends on various factors. A few of them are listed below:

  • Disabled POP and (IMAP) settings in the email server.
  • Windows Firewall blocking the request sent by Mail application.
  • Using Third-party Antivirus or Windows Defender.
  • Incorrect password.
  • Email server issue.
  • Unstable internet connection.

These are the common reasons due to which you face error code 0x8000000b. To fix it follow the steps below.

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Ways to fix Windows error code 0x8000000b

Here we’ve listed common ways to fix error Code 0x8000000b something went wrong Mail and Calendar App In Windows 10

Method 1: Reset Windows 10 application

To resolve Windows error code 0x8000000b you will need to reset Windows 10 application. To do so, follow the steps below:

  1. Press Windows + I key together and open Windows Settings.
  2. Here click on Apps.
  3. Under Apps & features look for Mail and Calendar app > Advanced options.Apps & features features_error code 0x8000000b
  4. Click Reset button.
  5. A new pop up window will appear, click Reset for final confirmation.Reset_error code 0x8000000b

Now try to synchronize your Gmail account with Windows 10 mail. You should not encounter error code 0x8000000b.

Method 2: Re-register Mail and Calendar app

Sometimes, re-registering an app can also fix error code 0x8000000b on Windows 10. To re-register an app, follow the steps below:

1. In Cortana search bar type cmd.

2. Next, right-click the search results that read Command Prompt and select Run as administrator.

Command prompt_run as administrator

3. You’ll be asked for UAC permission, click Yes.

4. Now type:

PowerShell -ExecutionPolicy Unrestricted -Command "& {$manifest = (Get-AppxPackage *windowscommunicationsapps*).InstallLocation + '\AppxManifest.xml' ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest}" in command prompt window and press Enter.

command prompt_Windows 10

5. This will begin the process, once finished restart machine.

command prompt_deployment

Now check your system you should not face error code 0x8000000b.

Method 3: Add an account to fix error code 0x8000000b

The following method will work only for those who are using a Gmail account with Windows Mail.

1. Press Win+S key and type mail.

2. Open the Mail app and click the gear icon to open the Windows 10 Mail Settings.

Mail app_error code 0x8000000b

3. Click Manage accounts > Add account.

Manage accounts_mail app Windows 10

add account mail app_windows 10

4. Click Advanced setup from the pop-up window.

5. Next, click Internet email and provide your account details.

6. Here, enter settings as:

Incoming server –

Account type – IMAP4

Outgoing SMTP –

7. Click Sign in, you’ll get configuration message > Done.

Method 4: Turning Off Windows Defender

Antivirus or Windows Defender can be blocking the sent request due to which you encounter error code 0x8000000b. To resolve it you’ll need to disable Windows. To disable Windows Defender, follow the steps below:

  1. Type Windows Defender in the Cortana search bar.
  2. Click it from the results.
  3. Head to ‘Firewall and network protection.
  4. Select the network profile and disable the Windows firewall for it. Follow the same steps for each profile.Windows defender_windows 10

Now try to sync the email you should not face error code 0x8000000b.

Method 5: Allow Mail through Windows Firewall

If disabling Windows defender did not help in solving error code 0x8000000b you’ll need to allow mail application via Windows firewall. To do so, follow the steps below:

  1. Head to Windows Defender Security Centre.
  2. Click on ‘Firewall and network protectionAllow an app through firewall’ select ‘Change settings’.Windows allow in firewall_error code 0x8000000b
  3. Next, look for Mail app and check both Private and Public options under the list of Allowed apps & features:Private and Public options_windows mail
  4. Click Ok to save settings.

Now try to use Gmail with Windows Mail and see if error code 0x8000000b has been resolved or not.


In addition to these steps, you will also have to enable IMAP in Gmail. To do so, follow the steps below:

  1. Sign in to your Gmail account.
  2. Next, click on the gear icon to open Gmail Settings.
  3. Click Forwarding and POP/IMAP tab.
    Gmail IMAP
  4. Search for “IMAP access,” click the radio button next to Enable IMAP.
  5. Click Save Changes to finish.

Now check if error code 0x8000000b is fixed or not.

These methods will help fix Error Code 0x8000000b. Let us know which method worked for you by leaving us a comment.

That’s all!

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