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How to fix error 0x80042109 in Outlook when sending an email

You do not know How to fix error 0x80042109 in Outlook? It usually happens when sending an email in Windows 10. Don’t worry, we will leave you several methods so that you can solve this problem quickly.

When we encounter this error we can read a message that says something like this: Outlook cannot connect to your outgoing email server (SMTP). If you continue to receive this message, contact your server administrator or Internet Service Provider (ISP). Error 0x80042109.

In this way, thanks to this error, we cannot send messages and it ends up becoming a nuisance quickly. So we are going to see all the methods we can do to solve it. It is not necessary to follow any kind of specific order.

Solution to error 0x80042109 when I send an email in Outlook

So if you want Fix error 0x80042109 in Outlook You just have to follow the instructions that we will leave you a little below. We are going to go step by step through several methods to achieve it.

Check the internet connection Delete the Outlook account and add it again Change the server port number Temporarily disable Windows Firewall

Now, let’s look at the points we made earlier in more detail.

Check internet connection to fix error 0x80042109

The internet connection could be the cause of error 0x80042109, simply because your internet performance is lower than normal, can cause this problem. The first thing you will have to do is make sure that you are connected to the internet.

After the download and upload speeds are good. For this I recommend that you use a website such as Testmy.

Delete Outlook account and add it back

Another method to solve this annoying 0x80042109 problem is to delete the account that we have added and add it again. To achieve this, you will simply have to follow the steps that we will detail below.

First we are going to open the “Windows Settings” by pressing “Win + i” on your keyboard. The “Windows Settings” opens and we will have to look for the “Applications” section. Now go to the left sidebar of the screen and press in “Applications and features”. Next, click on “Advanced options” and go to the bottom where you will find the “Reset” section. Just click “Reset”.

After you restore the app, you will simply have to open it and add your account again.

Change the server port number

If you are still dealing with error 0x80042109, one of the best ways to fix it is by changing the server port number.

For this we will have to go to Outlook and then File> Information> Account settings. Now we click on the drop-down menu and choose “Account Settings” again.

In this new section we will have to go to the “Email” tab and then we will have to double click on the email account. After this we are going to go to the lower right corner and press More settings> Advanced.

In the dialog box we will have to configure the outgoing server (SMPT) in 587 and choose the type of encrypted connections as TLS. Now we just have to click OK> Next> Finish.

The only thing left to do is restart the application and check if the error 0x80042109 is fixed.

Temporarily disable or disable Windows Firewall

The last option is to disable Windows Firewall temporarily. Sometimes it can block the applications that we have installed on our computer. However, it is not the best solution, since for security reasons, it is essential that the Firewall is always activated.

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