http://johannes.sipsolutions.net/Projects/exim-tor-hidden-mail/FAQ
http://johannes.sipsolutions.net/Projects/exim-tor-hidden-mail
+There are also recipes for postfix
+http://www.void.gr/kargig/blog/2014/05/10/smtp-over-hidden-services-with-postfix/
+and transport via ssh, http://log.or.cz/?p=332 .
+
Contact Petter Reinholdtsen <pere@hungry.com> if you have comments or improvements.
+The code is available from
+https://github.com/petterreinholdtsen/exim4-smtorp