[tsac]

You do realize all data leaving your device, PC or Cellphone is classified as public once it is sent. The Blackberry's main feature is it's ability to encrypt all data in the public zone. A reason why governments use them.
Now the main question. why do you need SSL on an email? Have you tried to use something like Yahoo in browser mode? I use it from my Z1 and 9810 and it goes to SSL mode from the login screens. I don't use it for the SSL but it's does allow me email access without having to add one to the phone.