Email Issue

[adaptive]

I'm having an issue sending and receiving emails, I'm getting this error:
Your server has unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity. Account: 'Adaptive', Server: 'ulmb.com', Protocol: POP3, Port: 110, Secure(SSL): No, Socket Error: 10053, Error Number: 0x800CCC0F

Any help would be appreciated.

[UnlimitedMB]

Your firewall is blocking the connection.