On Wed, 01 Dec 2010 15:35:24 EST, "Kern, Thomas" said: > Is there any capability in the current Listserv product to encrypt each > posting for each recipient? We have customers who use three different > encryption mechanisms, pgp, gpg and a purchased product called Entrust. There's really no sane way to do key management in this case. You really want the person who's actually originating the note to sign/encrypt it and have Listserv distribute the signed/encrypted message. (Think - do you really want Listserv to have access to the person's private key? At that point, it's out of the person's direct control, and shouldn't be considered a private key anymore) Incidentally, pgp and gpg should be interoperable if configured correctly (unless it's a *really* old pgp 2.6 or something).