How to Solve Error Code 0x80042109 – Microsoft live Mail sending Error Message in Outlook 2007/2016/2019

This article describes the Outlook Error 0x80042109. It is Microsoft Outlook Error. This Error restricts your ability to send/receive emails on your Outlook email address successfully. This error is quite common and is faced many Microsoft Outlook users.

Disclaimers:  Fixing an error on Outlook deals with your emails and attachments. Please backup your emails and it’s folders before you proceed. If you are not sure about the procedure, contact the technician for the support.

Microsoft Outlook Error 0x80042109
Microsoft Outlook Error Code
Avg. Time to Resolve Issue
50 mins
Microsoft Corporation
Error Number
System level
Log Name
Microsoft Outlook version 2.12
Operating systems
Windows xp
Windows vista
Windows 7
Windows 8
Windows 10

Causes of Outlook Error 0x80042109 :

  • Incorrect Outlook Configuration setting
  • PST files get corrupt
  • PST file crosses its fixed file size limit
  • Failure of POP3 and Protocol STMP in database server connection
  • Improper synchronization between Outlook and the server
  • Usage of invalid password or username
  • Virus Infection

Symptoms of Outlook Error 0x80042109 :

  • “Error 0x80042109” appears and crashes the active program window.
  • Your PC frequently crashes with Error 0x80042109 when running the same program.
  • “Microsoft Outlook Error 0x80042109” is displayed.
  • Windows runs sluggishly and responds slowly to mouse or keyboard input.
  • Your computer periodically “freezes” for a few seconds at a time.
Outlook 2007
Outlook 2010
Outlook 2013
Outlook 365
Outlook 2016
Microsoft Office (2013/365/2016)

Solutions for the Troubleshoot Outlook Error 0x80042109:

To fix the troubleshoot Outlook error 0x80042109 is following three methods and explain them briefly.

Method 1: Fix System Integrity Issues

  • open Run Window and enter the Outlook/safe then click Ok then start Outlook in Safe Mode.
  • After that Open the Run Window and enter the cmd then click Ok.



  • When the Command Prompt window opens, type SFC /scan now command and hit Enter.

sfc scanSFC scan

  • Now the system should run a scan for any system integrity issues. In case it finds any, it will get everything fixed automatically.

if this method did not help to remove 0x80042109 Error Code on Microsoft Outlook, then you should try the following methods.

Method 2: Use a system Repair Tool

In this method to check what is the core of the problem, we would highly recommend running a scan with a PC optimization tool, such as Regcure Pro

Method 3: Fix Windows Essentials

Microsoft indicates Windows Essentials 2012 damage as one of the 0x80042109 error causes. so try this,

  • Right Click on Start button and enter the Control Panel then click it.


control panel

  • Navigate to the Programs and Features and find Windows Essentials 2012 on the list.

Remove the old version office

Remove the old version office

  • Right-click on it and select Uninstall/Change.

Repair the office

Repair the office

  • When a confirmation window shows up, option for Repair all Windows Essential Programs and wait until a confirmation window reporting about successful repair emerges.

Repair the Windows

Repair the Windows

  • Now close everything and try to login to your Microsoft Outlook account.

If the above methods to resolve the Outlook error 0x80042109 fails, then instead of wasting your time, it is better to switch to a third party utility like Outlook Repair Tool which helps to fix the error codes without affecting the original data.

If you would like to have a support taken through a technical assistance. Feel free to initiate a chat or write us on with the complete information of the computer make and model, office or windows operating system versions and the best time to reach you for support.
We provide support for Microsoft products like Windows and Office and Outlook. We can also setup free tools provided and included with Microsoft Windows and can train you on how to use them to maintain the health of your computer. You can also ask for System Repair Image support or some Recovery help, we also restore your computer to a point when it was working fine without any issues.
Feel free to chat with us for any support. A free assistance can be provided for all the basic troubleshooting without any additional resources.
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Error Code 0x80042109

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