What email program are you using.
If you are using web-base email program, my method won't work.
I use Windows Live Mail, and here is how to enable Page by email and Link by email.....
Go to Control Panel > select Default Programs > select Set program access & computer defaults > click Custom > under Choose a default e-mail program, put a dot at Windows Live Mail > OK > exit the window.
Open IE11 > click File > click Send > Page by email and Link by email should be activated now.