The process of sending signed e-mails can be illustrated as follows.
In order to be able to send signed e-mails from his device, user B uses myDME to upload his personal certificate containing his public and private keys. This only has to be done once.
User B then sends an e-mail to person A from his device, marked as signed, and synchronizes his device.
Before delivering the e-mail to the collaboration system, DME verifies that user B has a valid personal certificate stored on the server.
If this is the case, the e-mail is passed to the collaboration system to be signed and sent to A. If not, the e-mail is returned to B with an error message specifying the problem.
