You can login to your email account by going to

https://server1.web-hosting-uk.com/roundcube/ (Roundcube)
OR
https://server1.web-hosting-uk.com/squirrelmail (SquirrelMail)

You will need to setup your email first by going to https://server1.web-hosting-uk.com:2222 >>> Email Manager tab >>> E-mail accounts if you haven't created one.