I have 8.1 installed, Windows Live Mail and have two email accounts set up.  One with ATT Yahoo and the other with GMAIL.  As of yesterday I still receive messages but can no longer send messages.  I had not sent any messages for a couple of weeks but was able the last time.   I have tried forwarding and creating new messages under both email accounts but get error messages when trying to send.  I have also tried to change outgoing ports from 465 to 25 on both accounts and changing from secure to non secure.   Have also tried with the firewall turned off.  I can use both email accounts from my IPAD on the same in home router.

The error messages are:

The connection to the server has failed.

Subject 'ABETTER'
Server: 'pop.att.yahoo.com'
Windows Live Mail Error ID: 0x800CCC0E
Protocol: SMTP
Port: 465
Secure(SSL): Yes
Socket Error: 10060

The connection to the server has failed.

Subject 'Test from GMAIL'
Server: 'smtp.gmail.com'
Windows Live Mail Error ID: 0x800CCC0E
Protocol: SMTP
Port: 25
Secure(SSL): Yes
Socket Error: 10060

Any suggestions?