CSM is a secured and professional system designed to provide anyone the possibility to safely communicate via e-mail.
This will let you control whoever has the possibility to write email to you or not, keeping "spam" and unsolicited e-mail out of your e-mailbox.
This high security level is offered by a system that we will call "Stamping".
Stamping will change automatically the "badge" you have issued every time you use it. If some unauthorized individual intercept your original badge will not be able to send you undesired e-mail messages, exclusively the senders that you have authorized with stamped CSM will be allowed to do so.