0x80042109 - What is it?
0x80042109 is a Microsoft Outlook error. The 0x80042109 error code occurs mostly while sending emails. The error message is often displayed in the following format:“Sending reported error (0×80042109): Outlook cannot connect to your outgoing (SMTP) e-mail server.”
Solution
Error Causes
It is not easy to narrow down the cause for the error code 0x80042109. This error can occur due to many reasons. This includes:
- Corrupt emails and PST files
- Incorrect Outlook account settings
- Unavailability of the mail server
- Incomplete Outlook installation
- Spyware or viral infection
Further Information and Manual Repair
To resolve the 0x80042109 error code on your PC, here are some easy and effective DIY solutions you can try:Method 1 - Check Mail Settings
Check your mail settings to see if your outgoing server SMTP is selected or not. If it is not, then it could be the reason for the issue. To check mail settings and select the option, here’s what you need to do:- Click Tools, select Account Settings, and then POP 3 account and click change.
- Now check your name field and email address.
- Check the incoming and outgoing mail server fields and make sure that it is correct.
- Now click on the outgoing server and make sure that the option ‘My Outgoing Server (SMTP) requires Authentication is selected.
- After that, click Advanced and tick the option that says ‘This server requires an encrypted connection (SSL).
- Now click OK to confirm settings.

This error is very frustrating and it annoys pretty much anyone who encountered it but do not worry we have a solution for you.
First thing is to confirm the error prompt, Click on the OK button and then on X to exit Windows 10 installation wizard. Click on yes to confirm that you want to exit the setup.
You will find yourself in original installation windows.
On that screen choose and click on Repair your computer. Choose an option screen that will pop up, click on Troubleshoot. In the advanced options, click on the command prompt.
Once you are in command prompts type DISKPART and hit ENTER
In the diskpart prompt type LIST DISK and hit ENTER again.
type SELECT DISK #, where # is listed disk number where you would like to install Windows.
type LIST VOLUME in order to list volumes in the selected disk and hit ENTER
You need to select the volume on which you would like to place your WINDOWS, to do this type in SELECT VOLUME #, where # is the listed number of the volume
Finally, type FORMAT FS=NTFS and hit ENTER
You have successfully formated a given volume, you can now exit DISKPART and return to setup, to exit DISKPART simply type exit and hit ENTER.
Leave command prompt as well by again typing exit and hitting ENTER
You will be returned to Choose an option screen, click on Turn off your PC.
Your drive has been successfully formatted and it is ready for clean Windows installation, you can now restart your Windows 10 installation and the process will complete without errors.
As in most usual online scams, everything starts with a strange email containing threats and other poorly written and composed speech. At the end of the given email, there would be a link claiming that you, of course, need to read it and follow instructions about the threat, if you click the link it will open a web page where you will have an innocent-looking PDF file with more information about the threat itself.
If you click on a seemingly innocent PDF file it will summon Windows 10's AppInstaller.exe tool, kickstarting a download-and-run process that'll put you in a bad place very quickly. From there, you'll have to deal with the dangers of malware BazarBackdoor, including data and credential theft.
This kind of scam is nothing new but the interesting thing here is that it uses App installer and by clicking on a link you are opening and giving permission for a malicious crook to use it. So, stay safe and do not click on any links from unknown emails no matter what. 