I like that we can use it as an internal tool if needed or just set up something simple when needing our clients/customers emails be protected! It's easy enought anyone should have no problem using this service right away :) If you're looking into protecting your customers' private data then go ahead but keep in mind there might be other better services out their too which will do exactly what this one does (but maybe not so cheap). Protecting my client's personal communications from spam and hacking attacks - both internally & externally.-.