I keep getting the following error message when I try to open my Inbox:

Your server has unexpectedly terminated the connection. Possible causes for
this include server problems, network problems, or a long period of
inactivity. Account: 'Print-Cess', Server: 'pop.domainnamesanity.com',
Protocol: POP3, Server Response: '+OK', Port: 110, Secure(SSL): No, Error
Number: 0x800CCC0F

It keeps just loading the same old messages over and over again. I'm
unable to permantently delete them. And, I'm not recieving any new messages.
Any help will be greatly appreciated!