Suddenly things have changed and sending emails I get:

"Your server has unexpectedly terminated the connection. Possible causes for
this include server problems, network problems, or a long period of
inactivity. Account: 'pop3.ukonline.co.uk', Server: 'pop3.ukonline.co.uk',
Protocol: POP3, Port: 110, Secure(SSL): No, Error Number: 0x800CCC0F"
Grateful advice please. Brett