WiFI encryption is between 'two-end-points'. For the home user, this means
security between the
computer and the router, thus protecting your data from
the neighbor's view. At the hotel (just like other hot-spots) the router needs to
be 'open' so that everyone can connect.
These sites can not be secured per the above.
The other end-point model is the formal corporate infrastructure, where you're
literally behide the firewall and have access to the LAN. This link is performed using
VPN hardware or software. Your WiFI may be still active, but the real security is the VPN layer.
That being said, it is possible to secure your EMAIL regardless of where you are connected.
You need an Email Client program like
Thunderbird or Outlook Express (if you still trust it :blackeye: )
A PGP implementation to do the encryption/decryption
an to distribute your public key to your correspondants
The process is to create a message, encrypted, and paste into the outbound
email. I use
FileAssurity from ArticSoft