Windows 10 Mail Error 0x8000000b

Method 2: Allow Access To The Mail App In Firewall

• Step 1: On your Windows computer, click the Start menu and type ‘windows defender security center’ in the search panel.
• Step 2: From the search result, select the Firewall and network protection option.
• Step 3: Click the Allow apps to communicate through Windows Defender Firewall link and click the Change settings button.
• Step 4: From the list of allowed applications, check both the Private and Public checkboxes for the Mail app.
• Step 5: Click the OK button and check if the problem has been resolved.

Method 3: Disable Windows Firewall

• Step 1: First, open the Windows Defender Center.
• Step 2: Navigate to the Firewall and network protection section.
• Step 3: Choose your network profile and disable Windows Firewall.
• Step 4: Now, launch the Mail app and check if the Windows 10 mail error 0x8000000b code appears again.

Method 4: Remove And Re-add Your Email Account In The Mail App

• Step 1: Click the Start menu at the bottom-left corner of the screen and type ‘mail’ in the search panel.
• Step 2: Click the Mail app from the search result.
• Step 3: Once the Mail app is launched, click the Settings icon.
• Step 4: Select your account from the right-side panel and click the Delete account button.
• Step 5: Once you have deleted your email account, click the Settings icon again and select Manage accounts.
• Step 6: Click the Add account button followed by Advanced setup.
• Step 7: Click the Internet email button in the Add an account section.
• Step 8: Enter the necessary account details on the next screen and click the Sign In button.
• Step 9: Wait for a few seconds to verify your email account.
• Step 10: Once your email account has been added successfully, send a test mail to check if the Windows 10 mail error 0x8000000b has been resolved.