In Letter templates, define a letter type of "Secure message". We'll use this later in the letter template and in notifications.
Create a new letter template whose Letter type is "Secure Message" and whose Preferred sending method(s) is "VSys Live".
Create a notification subscription for "(referenced person)":
Any Description and E-mail subject you want.
Add the notification event "Pending VSys Live messages (outbound)".
Delivery method of "E-mail".
Edit notification text to say something like "You have secure messages pending. Please log into volunteers.oursite.org with your credentials to read them."
Set Message types to "Secure message".
Do not check Include message body in notification: that would include the "secured" content in an insecure e-mail.
Place a listing block on your VSys Live site where volunteers can see their messages.
What does this get you?
When you send a letter based on the template you created above, VSys won't e-mail it. Which is good.
When the notification subscription above is run, VSys will send an e-mail to the recipients telling them that they have messages to view.
The recipient signs into VSys Live and views her messages, but only on VSys Live. She can't forward it or send it on to anyone else, and you can delete these messages using the Letter Manager after some period of time if you want to.
Nothing can prevent the recipient from printing the contents of their browser screen, or just taking a picture of that message with their phone. This tool is great for preventing accidental disclosure, but intentional disclosure is much, much harder to stop. Educate your volunteers!
