When I click on send and receive I get the following message

Unable to send or receive messages for the Sky (robertburns2) account. Your server has unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity.

Server: 'pop.tools.sky.com'
Windows Live Mail Error ID: 0x800CCC0F
Protocol: POP3
Port: 995
Secure(SSL): Yes

I can still send messages from my Live mail but not receive I am bringing in my mail form Sky Yahoo