I have been using Windows Live Mail for over a year on Windows 7 PC with no issues.  All of a sudden I am not able to send emails, only receive.  This happened while I was using the email program – I made no changes to settings, didn’t download anything from internet.  I have 5 different email addresses, 4 gmail accounts and 1 hughes.net, and have the same problem with all of them.  Multiple reboots of PC have made no difference.  I work from home and it is essential I have functioning email.  Using the internet gmail server is out of the question. 

The error messages I’m getting read as follows:

For the gmail accounts:

Your server has unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity.

Subject 'working?'

Server: 'smtp.gmail.com'

Windows Live Mail Error ID: 0x800CCC0F

Protocol: SMTP

Port: 25

Secure(SSL): Yes

Socket Error: 10053

For the hughes.net account:

The message could not be sent. The setting for your outgoing email [SMTP] server might need to be configured. To find the server settings for '*** Email address is removed for privacy ***', please contact your email service provider.

Subject 'working?'

Server Error: 554

Server Response: 554 5.7.1 [R8] Authentication Failed, must login.

Server: 'smtp.hughes.net'

Windows Live Mail Error ID: 0x800CCC79

Protocol: SMTP

Port: 25

Secure(SSL): Yes

Thank you for your help.