When I try to send an e-mail, I get this message:

The server does not support a SSL connection.

Subject 'Fw: '
Server Error: 250
Server Response: 250 8BITMIME
Server: 'smtp.att.yahoo.com'
Windows Live Mail Error ID: 0x800CCC7D
Protocol: SMTP
Port: 25
Secure(SSL): Yes

I am a home user with an internet connection that IS working.  Also I am receiving emails via Windows Live Mail.  I was able to send messages until 5/26.  Using the repair solution mentioned for a customer (5/26/2013) did not work.