If you receive an encrypted email message in your webmail
account or in an unsupported email program, you can read it using
the Zero Download Reader.
You must register your email address with Zero Download before
you can read a private message sent to that address. However, someone
using Encryption for Email can send you
a private message even if you have not registered yet. Zero Download detects
that the email address has not yet been registered and then helps
you to register on the web just before you open the private message.