The Clearinghouse for International Computing
MacPGP 2.6.2 is available, but has been replaced by PGP 6.5.8 for Macintosh. PGP 6.5.8 does not support AppleScript and "mailto" will not work with PGP 6.5.8 at this time.
PGP Inc. is working to add AppleScript to a later version.
MacPGP 2.6.2 or PGP 6.5.8 are available to US and Canadian citizens from http://web.mit.edu/network/pgp.html or from PGP Inc.