Split from this thread.

Unable to send or receive messages for the mail.bresnan.net account. Your server has unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity.

Server: 'mail.bresnan.net'
Windows Live Mail Error ID: 0x800CCC0F
Protocol: POP3
Port: 110
Secure(SSL): No
Socket Error: 10053