[Djigzo users] CipherMail GW anywhere

Hi, I've read the CipherMail gateway documents and got impressed from all the capabilities that can be used to encrypt end-to-end users' emails. I need to provide for 50 none-tech users: 1. end-2-end encrypted emails for managed users registered with the same email domain (internal users). From the docs I understand that either PGP or S/MIME is used. 2. For the internal users to send secure email to any other external email address (other domains). From the docs I understand that WebMail or PDF is used. 3. Simple remote installation/setup and users' usage (people with 0 tech capabilities). Both, Internal and External, users can be anywhere connected over the open Internet (not in secure LAN/Intranet). I've already install the CipherMail gateway and looked into it, but I'm missing the overall picture for how to start with the system setup. I would appreciate any advice/tip/direction to. Regards Assaf