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How to fix Outlook error 0x80042109 in 4 easy steps

Find out all you need to know to fix error 0x80042109

4 min. read

Updated onOctober 4, 2023

updated onOctober 4, 2023

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Key notes

Even though we have a dozen third-partyemail clients nowadays,Microsoft Outlookis still a force to be reckoned with in this department.

Nonetheless, even Outlook doesn’t refrain from occasionalerrors, like the one with the code0x80042109.

Users reported that they’re unable to send emails and, once they try, they are prompted with this lengthyerror:

Sending reported error (0x80042109) : Outlook cannot connect to your outgoing (SMTP) e-mail server. If you continue to receive this message, contact your server administrator or Internet service provider (ISP).

Fortunately, we have prepared a few solutions to help you overcome this issue. In case you’re having a hard time with Outlook, make sure to check them out below.

What is error 0x80042109 in Outlook?

Users may typically encounter this Error Code 0x80042109 if they attempt to send emails using Outlook. Their outgoing emails are not successfully delivered to the receiver, and an error notice informing them that there are issues with the email server appears on their screen.

The error code 0x80042109 in Outlook 2013 could have been caused by any number of things. The following are some of the possibilities:

Follow our list of solutions below in order to fix this Outlook error and get back to successfully corresponding with your contacts.

How can I fix Outlook error 0x80042109 in Windows 10?

1. Check connectivity

Firstly, you’ll need to confirm that your PC is properly connected to a stable network.

For obvious reasons, your email client won’t be able to reach servers and, consequently, you won’t be able to receive or send emails.

In case your connection is subpar and you are positive that it’s the culprit for theerror, these are the steps you should take in order to troubleshoot your connectivity:

Once you’ve regained the stable connection, the problem should be resolved. However, if that’s not the case, make sure to move on with the steps.

2. Change outgoing port

Astandard outgoing SMTP(Simple Mail Transfer Protocol) port’s value is by default set to25.

Now, it seems that many ISPs are blocking this port value and thus, you’re unable to send emails. You have two options in this scenario:

The second option is non-standard port value but, nonetheless, a proven solution for this issue. Follow these instructions and we should be good to go:

On the other hand, if you’re still stuck with theerrorat hand, continue with the troubleshooting steps below.

3. Reconfigure Firewall

Even though you configured email incoming and outgoing ports, the problem might persist. And Firewall might be the one causing theerror.

It’s not common for Windows Firewall to block trusted Windows features, but, apparently, this can happen from time to time.

In order to confirm that Firewall is indeed allowing Outlook to access the internet, follow the instructions below:

4. Remove your account and add it again

Finally, you can try and remove your account fromOutlook. You can also completely reset the app by navigating to Settings > Apps > clicking onOutlookand accessing Advanced Options.

Once there just click Reset. After that, just add your account again, configure it, and wait until it fully synchronizes.

That should do it. We’re sure that you’ll be able to overcome theOutlookerror0x80042109 with the provided solutions.

Additionally, don’t forget to post your questions or suggestions in the comments section below.

First, check if you receive any error, and then check if your ISP is blocking a port. Read ourcomplete fix guide for this problem.

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How to fix Outlook error 0x80042109 in 4 easy steps#

What is error 0x80042109 in Outlook?#

How can I fix Outlook error 0x80042109 in Windows 10?#

1. Check connectivity#

2. Change outgoing port#

3. Reconfigure Firewall#

4. Remove your account and add it again#