Sky UK Limited is a telecommunications company which provides its services of television, broadband internet services, fixed line and mobile telephone in the United Kingdom. You are entitled to use their email services with your Yahoo account. This is easy to use with a decent connection of your Sky network. If you facing any trouble with it, you can use these Quick tips to fix Sky Yahoo mail trouble.
Check service status for any concern using the link
 Check date and time settings as incorrect date/time will not allow using your account
 Check your web browser updates and fixes, if need get it fix; also enable the JavaScript for your browser
 You can try once again after switching to Basic Sky Yahoo Mail