Why can't outlook express find the host yahoo when sending mail?

Yahoo's email system is a HTML based system. It works like a regular web page. Outlook Express uses SMTP (Simple Mail Transport Protocol) and POP3 (Point of Presence 3) which are entirely different systems than HTML.

HTML Mail is best for people that move around a lot and get their mail on different computers, Outlook Express has more mail features but you have to set up an account every time you change computers.

yahoo toll free number
www.quicksupportservice.com
+1-855-510-0777 (US/CA)
+44 - 800-051-3717 (UK)
+61-180-082-5192 (AUS)