Jenuwynn or anyone else:  I have the same problem as Mark_M, posted on October 24, 2012.  Mine started three days ago.  Up until that time everything was working perfectly.  I have Windows 7 on my computer and am using Windows Live Mail which goes through the Comcast isp server.  I can receive email on my computer but I cannot send or reply to emails. 

Server: smtp.comcast.net 

Windows Live Mail Error ID: 0x800CCCOE

Protocol: SMTP

Port: 25;

Secure (SSL): No

Socket Error: 10013.  Note that everything is as in the above attached quote except the Socket Error number.  I have tried everything I can think of with no positive result.  I can only send or reply to emails by going to the Comcast Website and doing it there.

Can you help me?  JohnMorrowMI

Split from an unrelated thread