The Outlook email client sends the RPMSG file to recipients as an attachment to a standard Outlook message. The message explains that it contains protected content and includes a link to open the RPMSG file. Only specified recipients can open RPMSG files. ...
RPMSG files are used to deliver e-mails with Rights-Managed Email Object Protocol enabled. This protocol controls e-mail access and usage permissions. Instead of a plain text, e-mails via RPMSG files are sent with content encrypted and stored as encrypted file attachment. RPMSG is used to sen...