Usually, this Error Code 0x80042109 appears while users try to send emails via Outlook. Their outgoing emails fail to reach the recipient, and they see an error message about problems on the email server on their screen.
Below are the solutions that may be help you to get rid of error 0x80042109:
- Removing then Adding Your Account
- Installing Pending Updates
- Disabling Your Proxy Server
- Disabling Your Third-Party Antivirus
- Changing the Outgoing Port
- Reinstalling Outlook
- check internet Connectivity
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