Microsoft Outlook is a useful tool to have, but if you’re like me and have several email accounts setup, you can easily lose track of which one is where.  When I recently ran into a situation where I couldn’t access my email account, I was able to fix it. The problem was the error code I was getting.  Outlook Error 0x80042109  is caused by the account being migrated to a new email provider or the account being deleted altogether.  This guide will show you how to fix the error code and figure out where the problem is.

I was having some issues with Outlook.exe and I was trying to resolve the problem on my own, but I wasn’t getting anywhere. So I asked’s community of IT professionals to lend a hand. I received some great feedback from around the web in the form of our Top 5 Ways to Fix Outlook.exe Errors.

Do you lose countless hours trying to troubleshoot a problem that isn’t really a problem? Let me guess, it’s the dreaded Microsoft Outlook error 0x80042109. If this sounds familiar to you, then don’t worry, as I’ll show you how to fix this problem in a few easy steps.

RECOMMENDED: Click here to fix Windows errors and optimize system performance. word-image-2379 Error code 0042109 usually occurs when users try to send email using Microsoft Outlook. Your outgoing emails do not reach the recipient and you get an error message and problems on the mail server. This problem does not seem to affect any other processes in the system. It causes no downtime, delay or system failure. This of course only applies to Outlook. In most cases you will see the following error messages: A sending and receiving error ( 0042109) is reported: Outlook cannot connect to your outgoing mail server (SMTP). Error reported by sender ( 0042109) : Outlook cannot connect to the outgoing mail server (SMTP). If you get the first error message, it means that there is a problem with your internet connection, which means that your email cannot be sent correctly. Meanwhile, the second message tells you that Outlook is not responding and you cannot take any action. You cannot modify or update it, which also means you cannot send or receive emails. This problem may sound familiar to the questioner: What does the 00ccc0e error mean in Outlook? After all, the symptoms are very similar. Whether you are experiencing 004242109 or 00ccc0e as an error, we are sure that our solutions will help you to send and receive emails successfully.

What is the cause of Outlook error 0042109?

word-image-2380 The cause of Outlook 2013 error 0042109 can be anything. Some of the possibilities: :

  • Corrupt PST or email
  • Viruses, malware or spyware
  • Incomplete installation of Outlook
  • The mail server does not connect because the internet is unstable
  • Incorrect account settings
  • Excessive number of unnecessary files
  • Awaiting updates in Outlook
  • An anti-virus or malicious software installed on the computer prevents emails from being sent.

How to fix Outlook error 0042109

updated June 2021:

We now recommend that you use this tool to fix the error. Moreover, this utility repairs common computer errors, protects you from file loss, malware and hardware malfunctions, and optimizes your PC for maximum performance. With this program you can quickly solve PC problems and prevent further problems:

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  • Step Three: Click Repair All to fix all issues.

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Firewall reconfiguration

Even if you have configured the ports for incoming and outgoing email, the problem may persist. The error can also be caused by a firewall. Windows Firewall doesn’t often block trusted Windows features, but apparently it can from time to time. To make sure that the firewall actually allows Outlook to access the Internet, follow these instructions:

  1. Type firewall in the Windows search box and open Windows Firewall.
  2. In the left pane, click Allow application or feature through Windows Firewall.
  3. Click on the Change settings button.
  4. Now find these 2 processes and enable them for private and public networks: Outlook.exe (for Outlook) Msimn.exe (for Outlook Express).
  5. Then confirm the changes and restart the computer.

Connection test

For obvious reasons, your email client cannot connect to the servers and so you cannot receive or send emails. If your connection is poor and you are sure this is the cause of the error, you should follow the troubleshooting steps below:

  • Restart the router and the modem.
  • Switch to a wired connection instead of a wireless one.
  • Restart your computer.
  • Temporarily disable the proxy server and VPN.
  • Start the Windows troubleshooter.

Once you have a stable connection again, the problem is solved.

Delete your account and add it again

You can try to delete the Outlook account. You can also completely reset the application by going to Settings -> Applications, clicking on Outlook and going to Advanced Settings. Then just press the reset button. Then add your account, configure it and wait for the full sync. That should be enough. We are sure you can solve the Outlook 0042109 error with the suggested solutions.

Change outgoing port

The default setting for the outgoing Simple Mail Transfer Protocol (SMTP) port is 25. However, it turns out that many ISPs block this port value and you cannot send mail. You have two choices in this scenario:

  1. Change the SMTP value to 26.
  2. Go to the TLS port and select 587.

The second option is a non-standard port value, but it is a proven solution to this problem. Follow these instructions and everything will be fine:

  1. Open Outlook.
  2. Choose Tools.
  3. Open the account settings.
  4. Double-click on the email address where the error occurred.
  5. Select Advanced Settings.
  6. Open Advanced.
  7. Set the SMTP port of the outgoing server to 587 and select TLS encryption.
  8. Confirm the selection and check the changes.

RECOMMENDED: Click here to fix Windows errors and optimize system performance.

frequently asked questions

word-image-2382Outlook is an email client for the Microsoft Windows operating system. In this blog post, we will show you how to troubleshoot the problem: “Outlook error 0x80042109”.. Read more about outlook 2007 error 0x80042109 and let us know what you think.

Frequently Asked Questions

How do I fix error 0x80042109 in Outlook?

Microsoft’s own error messages can be a little cryptic, so this article will help you clear up what is causing the error and what you can do about it. Recently, I have been experiencing a problem with my computer which was not working for the last few days. I am not sure what caused the problem, but I have been able to fix it by following this tutorial.

How do I fix SMTP Error in Outlook?

Outlook is a great email application. It comes with a ton of features, and the program itself is easy to use. In this guide you will learn how to fix Outlook Error 0x80042109. This will help you to re-establish the connection of your email client to the SMTP server. SMTP error: 0x80042109 is a common error that occurs when Exchange Server or Outlook is unable to connect to the SMTP server. This 100% generic error will occur once in a while and is often associated with a bad IP address or bad email provider settings.

What is error 0x800CCC0F outlook?

Thanks to the power of computers, we can solve any problem. Or at least we can try. Sadly, there are sometimes problems we can’t solve with a computer and need a human to handle it. This is where Microsoft’s tech support comes in. If you have an issue with Outlook, be it a simple error code or some other problem, Microsoft and its tech support staff are there to help you. Want to know the most common reasons why Outlook has errors and is not working? No problem! We have a complete guide to help you fix Outlook error 0x800CCC0F.

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