7 Solutions to Fix Outlook Error 0x80042109

7 Solutions to Fix Outlook Error 0x80042109 Issue

Are you unable to send an important email because of Outlook error 0x80042109? Read here the different solutions to fix this error.

Jul 20, 2020 • Filed to: Recover & Repair Emails • Proven solutions

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While sending emails on Outlook, if you are facing Outlook error 0x80042109, there is nothing to worry about. You can fix it without any difficulty with the solutions discussed in this article.

We will guide you on what this error is and the possible causes for the occurrence of this error.

Read on to understand the detailed steps to fix Microsoft Outlook error 0x80042109.

Part 1: What is the Error 0x80042109 in Outlook?

When you get the Outlook error 0x80042109, your recipient will not receive your email. The error message that appears while sending emails through Outlook indicates some problem with the email server.

Here the Outlook fails to connect to the server. It may be due to some issues with the internet connection, or due to unresponsive Outlook.

However, the error message won’t affect the working of the other programs on the system.


Part 2: Causes of MS Outlook Error 0x80042109

The cause for Outlook 2013 error 0x80042109 can be any. Some of the possible ones are:


Part 3: Methods to Resolve Outlook error 0x80042109

As you are now aware of the possible causes of the Microsoft Outlook error 0x80042109, let us understand the different solutions that can help to fix the error.

Solution 1: Removing then Adding Your Account

One of the simplest tricks to fix the issue is removing your account and then adding it in Outlook. Follow the below easy steps to fix the error:

Step 1: Click on “Settings” and then look for “Apps”

apps highlighted

Step 2: Click on “Outlook” and reach “Advanced Settings”

Step 3: Click on “Reset”

Step 4: Add your account information again

After resetting, add your account, configure it, and see till the synchronization completes.

The process completes with this step, now you can try sending your email. If the problem remains the same, try the next method.

Solution 2: Check Mail Settings

Now check your Outlook mail settings and see whether the SMTP (Outgoing Server) is selected. If the server is not selected, then this can be the possible reason for the error. Check and change the settings with the below steps:

Step 1: Launch your Outlook and reach “Account Settings” after clicking on “File -> Info”

arrow pointing account settings

Step 2: Look for your email account and double-click it. Now click on “Change”

Step 3: Reach “Advanced Settings” with this path More Settings -> Advanced Settings

Step 4: Change the port no of Outgoing Server (SMPT) and set the encryption to TLS

If the port no is 25, change it to 587 or vice-versa.

outgoing server highlighted

Step 5: Enter “OK” and then “Finish” after clicking on “Next”

arrow pointing finish

Now re-launch the Outlook and check whether the error is still there or you are able to send the email. If the error message is still there, proceed to the next solution.

Solution 3: Reinstall Outlook on your PC

Incorrect Outlook installation can also be the possible cause of the Outlook error 0x80042109. Try reinstalling it with the below steps:

Step 1: ¬Open Control Panel and click on Programs

Step 2: Right-click on the Outlook and click on “Uninstall”

Once you click on Uninstall, the Outlook app is removed from your system

Step 3: Reinstall the app and restart your computer

After the installation completes, reboot your system and check, are you able to send the email? If you can send it successfully, the problem is because of an incomplete installation. However, if you are still getting the Microsoft Outlook error 0x80042109 try the below methods.

Solution 4: Try Disabling Antivirus Software and Firewall

Do you have firewall or antivirus installed on your computer? Try to email after disabling them. At times anti-malware conflicts with the software and thus results in an error. Though the firewall does not block trusted programs, it can happen sometimes.

Disable firewall with the following steps:

Step 1: Open control panel and then click on the option System and Security

Step 2: Click on Windows Firewall and then tap on “Turn Windows Defender On or Off”

Step 3: Turn off the firewall and click on OK

turn off firewall

To disable antivirus, right-click on its icon, and then click on - disable. Confirm whether the process is complete by pressing Alt+Ctrl+Delete. There should not be any antivirus-related process running in the Task Manager.

Now try to send the mail from your Outlook. If it is sent, that means firewall or antivirus is blocking it. Change the settings to enable Outlook to send emails and then restart your computer.

Solution 5: Checking Your Internet Connectivity

Check whether the computer is connected properly to the internet and has a stable connection. If the connection is not stable, you won’t be able to send or receive an email.

Troubleshoot connectivity with the following steps:

Step 1: Restart your modem and router and create a wired connection

Step 2: Restart your computer and disable VPN and proxy

Step 3: Run Windows troubleshooter

Try to send the email when you are sure of having a stable connection.

Solution 6: Changing the Outgoing Port

The standard value of the SMTP port is 25, and internet providers generally block this value. If this is your case, then sending and receiving email seems impossible. Solve the problem with the following two methods:

For changing to TLS port, follow the below steps:

Step 1: Launch Outlook and click on Tools

Step 2: Click on Account Settings and double-click on your email

Step 3: Select “More Settings” first and then reach “Advanced”

Step 4: Now change the SMTP port to 587 and select TLS encryption

SMTP highlighted

Confirm the changes and try sending an email.

Solution 7: Automatic repair using Stellar Outlook Repair

If all the above-discussed methods fail to solve the error, Stellar Outlook Repair will surely resolve it. The advanced software restores corrupted PST files and helps to retrieve mailbox items in their original and exact form.

Step 1: Add PST file

file selected

Step 2: Repair the PST file

repair in progress

After the selection of the PST file, click on repair. This will begin the repairing process. You can see the progress of the scanning process through the bar that is displayed in the box. However, if any time you feel like stopping the scan, just hit at the “Stop” button. The total time taken by the scan depends on the corruption severity and the PST file size.

Step 3: Preview and save

preview of the file

Once the scan completes, you can view your repaired file from the left side panel. Double-click on the file that you want to view. After previewing and confirming the required file, “save the repaired file” after clicking on the option. Save the file after clicking on “OK.”

With this step, your repair process completes. Now you can access your Outlook without any trouble.

The Bottom Line

While working on Outlook, Microsoft Outlook error 0x80042109 can occur due to several reasons. Whatever be the reason, the solutions discussed in this article will surely help you solve the error. We recommend using Stellar Outlook Repair to fix this error. The advanced repair tool can repair and retrieve any of your corrupted Outlook files.

So, the next time whenever you come across such a situation, fix the error with the Stellar PST repair tool.

Amy Dennis

staff Editor

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