Fix: Error 0x80048bf5 in Windows 10 Mail App

The Windows 10 Mail app, along with the Windows 10 Calendar app and the Windows 10 People app, is considered to be among the most subpar components of Windows 10. These apps have been buggy and broken throughout the many iterations of Windows 10 that have been released. Even though Microsoft has managed to fix several issues that users of the Windows 10 Mail app have encountered, certain problems persist. For instance, an error message stating, ‘We’re having a problem sending messages. Make sure you have a connection, your account information is correct, and try again.’ This message, accompanied by error code 0x80048bf5, has not officially been resolved.

Thankfully, there are a few solutions that have proven to work for the majority of users who have suffered from error code 0x80048bf5 in the past. The following are the three most effective methods that you can use to combat error code 0x80048bf5:

Method 1: Disable any and all third-party firewall programs

The Mail app may be having trouble establishing a connection with the World Wide Web due to interference from a third-party firewall app. This app may be hindering the Mail app from maintaining a stable internet connection. If this is the case, simply disabling or uninstalling any and all third-party firewall applications on your computer should allow the Mail app access to the internet, effectively eliminating error code 0x80048bf5. If the Mail app begins to work after disabling or uninstalling the third-party antivirus, you can then reinstall it; doing so will reset the firewall settings.

Method 2: Rename the Comms folder on your computer

For some users who were experiencing problems such as error code 0x80048bf5 with the Windows 10 Mail app, renaming the Comms folder in the AppData section on their computer did the trick.

Close the Mail. Open File Explorer and go to C > Users > (Your Username) > AppData > Local.

Or, type %appdata% in the Run dialog (Windows key + R).



Then click the Local folder. Look for a folder titled Comms.

Change the name of the folder to anything other than Comms – for example, Comms_old.


Open the Mail app; upon opening, it will create a new Comms folder which should rectify error code 0x80048bf5.

Method 3: Uninstall and then reinstall the Mail app

If all else fails, uninstalling the Mail app entirely and then reinstalling it from the Store may just be able to free your computer and Mail app from the grip of error code 0x80048bf5.

To uninstall the Mail app, first open Windows PowerShell in Administrator mode. To do so, open the Start Menu, type powershell into the Search bar, right click on the program named Windows PowerShell, and click on Run as administrator.

powershell as administrator1

When Windows PowerShell fires up, type in the following command:

Get-appxprovisionedpackage –online | where-object {$_.packagename –like “*windowscommunicationsapps*”} | remove-appxprovisionedpackage –online


Press Enter. Close Windows PowerShell and open the old Store app (the one with the green tile), not the new Store app (the beta version). Use the Store app to reinstall Mail. Restart your computer.

Once your computer boots up, set up and use the Mail app; error code 0x80048bf5 should no longer occur.


Kevin Arrows

Kevin Arrows is a highly experienced and knowledgeable technology specialist with over a decade of industry experience. He holds a Microsoft Certified Technology Specialist (MCTS) certification and has a deep passion for staying up-to-date on the latest tech developments. Kevin has written extensively on a wide range of tech-related topics, showcasing his expertise and knowledge in areas such as software development, cybersecurity, and cloud computing. His contributions to the tech field have been widely recognized and respected by his peers, and he is highly regarded for his ability to explain complex technical concepts in a clear and concise manner.