My internet provider is Comcast and when I open Comcast.net I can see my incoming emails and can also sent out from that location.

I just downloaded Windows Essentials so that I could use Windows Live Mail.  After that installation I can see my incoming emails at the Windows Live Mail site.

When I try to send out an email from that site I get an error message 'cannot contact Comcast".  Error code is OX800CCCOE