Unable to Send and Receive e mails

Hi I have suddenly become unable to send and receive e mails.

I keep getting a "Windows Security" box pop up asking for a user name and
password. I am unable to get rid of this box, however my password is correct
through my virgin media access to my blue yonder mail account.

I keep getting the following error message:-

Account: 'POP3.blueyonder.co.uk', Server: 'POP3.blueyonder.co.uk',
Protocol: POP3, Server Response: '-ERR Protocol error.', Port: 110,
Secure(SSL): No, Server Error: 0x800CCC90, Error Number: 0x800CCC91

Can you help?
--
Sugary

"Sugary1too" wrote:

> Hi I have suddenly become unable to send and receive e mails.
>
> I keep getting a "Windows Security" box pop up asking for a user name and
> password. I am unable to get rid of this box, however my password is correct
> through my virgin media access to my blue yonder mail account.
>
> I keep getting the following error message:-
>
> Account: 'POP3.blueyonder.co.uk', Server: 'POP3.blueyonder.co.uk',
> Protocol: POP3, Server Response: '-ERR Protocol error.', Port: 110,
> Secure(SSL): No, Server Error: 0x800CCC90, Error Number: 0x800CCC91
>
> Can you help?
> --
> Sugary