How to fix 0x80042109

July 08, 2020 by Anthony Mellor


You may encounter an error code that activates 0x80042109. There are several steps you can take to solve this problem. We will take care of it now.

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"Sending error message (0x80042109): Outlook cannot connect to the outgoing mail server (SMTP)." If you receive the first error message, it means that problems with your Internet connection prevent you from successfully delivering your email.



Hello guys! Could you help me solve the problem that is preventing me from sending emails through Outlook? For some strange reason, I cannot do this, because error code 0x80042109 is displayed every time. Otherwise, nothing happens, the system does not freeze or crash, and there are no more errors, no BSOD, nothing. The problem is that Outlook is not working. This is a serious problem for me, because I manage my work and my personal email. Please help.

Microsoft Outlook with error code 0x80042109 is a problem that occurs when sending messages through Outlook. Outgoing e-mail cannot reach the recipient, and a message is displayed on the screen with information about problems with the mail server. [1] This problem seems to be significant and in most cases is related to changes, but the user did not bother anything.

Although some Windows errors are related to slowdowns, crashes, deadlocks, and similar problems, others come out of nowhere. [2] System errors are usually expressed as BSODs or popups.domain, while software-related errors occur when you try to run a specific application, such as Microsoft Outlook.

How do I fix Send Receive in Outlook 2016?

How to fix send and receive error in Outlook 2016?
  1. Open your Outlook account and go to "File"
  2. Click "Account Settings", then "Server Settings"
  3. Reset by entering the correct settings for the incoming mail server.
  4. Reset by entering the correct settings for the outgoing server.

If you received notification No. 1, this means that your emails cannot be sent due to a problem with your internet connection. The second message indicates that Outlook stops responding, so it cannot be installed, opened, updated, configured, etc. Therefore, of course, you cannot send or receive emails. Tell experts that the Outlook error code 0x80042109 can be caused by corruption of temporary Internet files or by infection by viruses or malware.

How To Fix Microsoft Outlook Error With Code 0x80042109

September 2020 Update:

We now suggest using this software program for your issue. Also, Reimage repairs typical computer system errors, defends you from file loss, malicious software, computer system failures and optimizes your Pc for maximum performance. You can fix your Pc challenges swiftly and prevent others from happening by using this software:

  • Step 1 : Download and install Computer Repair & Optimizer Tool (Windows 10, 8, 7, XP, Vista - Microsoft Certified).
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  • Step 3 : Click “Repair All” to fix all errors.


Malicious software / virus infection [3] is listed as one of the causes of Outlook error 0x80042109. Therefore, experts recommend installing a professional antivirus or PC optimization tool that can also detect malware / files. We recommend using Reimage . Then run a full system scan and check if whether there is a problem on your computer.

Delete And Add Your Account Again To Fix Microsoft Outlook Error Code 0x80042109

Install Pending Windows Updates

Disable Proxy

Disable Antivirus To Fix Microsoft Outlook Error Code 0x80042109

How do I fix an SMTP error with Outlook?

Fixed SMTP server error in emails
  1. Open your email client program (Outlook Express, Outlook, Eudora or Windows Mail)
  2. From the Tools menu, select Accounts.
  3. Click on your email account, then click on the "Properties" button.
  4. Click on the “General” tab.
  5. Make sure the email address is your valid address for this account.
  6. Click on the “Server” tab.

You should also try disabling antivirus software to fix error 0x80042109. It is no secret that the antivirus program often conflicts with other software installed on the system. As soon as an error occurs, you should try to disable the antivirus. To do this, right-click the antivirus icon on the toolbar and select "Disable". To make sure that it is fully completed, open the task manager (press Ctrl + Alt + Del) and check if there is an anti-virus process.

Remove Unnecessary Files From The Command Line

Start Checking System Files To Fix Microsoft Outlook Error With Error Code 0x80042109

Change Your Email Account Settings

Correct Your Mistakes Automatically


How do I fix error 0x800ccc0f?

General methods for fixing Outlook error 0x800ccc0f
  1. Check for connectivity issues.
  2. Disable Windows antivirus and firewall.
  3. Check your Outlook profile settings.
  4. Remove suspicious emails from Outlook and Outlook Outbox.
  5. Check the MTU of your router.
  6. Start MS Outlook in safe mode.
  7. Use the inbox recovery tool.
  8. Convert OST to PST. team is doing its best to helpUsers find the best solutions for their mistakes. If you have no problems with manual repair methods, please use automatic software. All recommended products have been tested and approved by our experts. Tools to help you fix the error are listed below:

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