If you go to https://gmail.google.com, the secure connection is supported all the way. Try that on Yahoo! Mail and you get the “name invalid” error, and even if you tell IE to ignore it, you are brought into the login screen that’s secure, but then Yahoo! takes you back to non-secure mail.yahoo.com, and you’re given a warning from IE about this mishap.
Hotmail’s secure connection is broken the same way, with “name invalid” error first, and the a redirect to regular, non-secure, Passport login.
