How to Troubleshoot: Outlook Error 0x80042109

Error code 0x80042109 usually occurs when users try to send emails through Microsoft Outlook. Their outgoing emails do not reach the recipient, and an error message and problems on the mail server appear on the screen. This problem does not seem to affect other system processes. It does not cause downtime, slowdowns, or system crashes. Needless to say, it only affects Outlook. In most cases, you will see the following error messages:

“Sending and receiving error reported (0x80042109): Outlook cannot connect to your outgoing mail server (SMTP).” read more