Best Solution For Blackberry Users In Thailand?

[Veazer]

I have a friend who has just brought a new blackberry from the US. Her email is hosted on an MS exchange server in the US. She has been told that only AIS and True offer pushmail. The problem is that she needs a fully secure solution, ie SSl/TLS and isn't too keen on having a Thai provider able to read her mail. As I understand it, she would need to give them access to her exchange account in order to use push mail.

What is the best solution for blackberry users needing secure email communication in Thailand? Can she just get an unlimited data account and check email frequently on the SSL ports?

There is a vpn connection available to the MS exchange server, are there any vpn clients available for the blackberry?

Sorry, my knowledge of blackberry devices in nil...