Question : Outlook is unable to connect to your outgoing (SMTP) e-mail server. (0x80042109)

I currently can receive e-mail on my pop.comcast.net account. Until recently I could send e-mail on this account as well. What should I do to correct this and restore my ability to send e-mail?

Answer : Outlook is unable to connect to your outgoing (SMTP) e-mail server. (0x80042109)

True, the page talks about traveling configuration, but it still should work when you are home. The issue when traveling is that you need SMTP authentication. But having it configured should not cause any issue when you are home.

Either way, this question is probably more appropriately asked to Comcast's customer support than this web site.

Regards,
Christophe