Email has provided a tremendous value and it's not exaggerating to say that it's changed
the world. The problem is that email was never designed to deal with the modern internet
and the huge number of threats that target you and your clients every day.
Aside from the various technical security weaknesses with email there are some basic
principles that rule out email for secure communications. Email is open. Anyone can send
email to anyone else and attackers can carefully craft messages to trick your clients
into revealing sensitive information.
Communication through Pritact is opt-in only. No one can send messages to your clients
without an established subscription. Your clients can't be spammed, senders can't be
spoofed, and opt-in communication means a much more difficult path to phishing.