using gpg HKPS, HTTPS TLS, DNSSEC, instead of only HKP [(diff)][1] [1]: https://trac.torproject.org/projects/tor/wiki/doc/TorifyHOWTO/EMail/Thunderbird?action=diff&version=8 URL: https://trac.torproject.org/projects/tor/wiki/doc/TorifyHOWTO/EMail/Thunderbird?version=8