PRZ has advocated hushmail for a long time (at least 2002 or so), which is nuts.
I believe they intended for people to use Silent Mail as POP3-style "download all messages locally", although people may not have done that. I set up silentmail on my devices in the "leave on server" form and lost both of the test messages I ever used it for; will probably survive.
I really don't think it had much user takeup, which they'd know since it was opt-in. It wasn't part of their original suite of tools, but got added after a few users requested it. It wasn't even the best secure mail tool one could have built, just the easiest for them to deploy with minimal effort.
I believe they intended for people to use Silent Mail as POP3-style "download all messages locally", although people may not have done that. I set up silentmail on my devices in the "leave on server" form and lost both of the test messages I ever used it for; will probably survive.
I really don't think it had much user takeup, which they'd know since it was opt-in. It wasn't part of their original suite of tools, but got added after a few users requested it. It wasn't even the best secure mail tool one could have built, just the easiest for them to deploy with minimal effort.