[tor-talk] Why postfix cannot work on tor (was What are some free and private emai providers?)

[tor at lists.grepular.com]

> Exim or postfix are not so hard to learn and roundcube is pretty
> easy to install :)

Postfix does not work with tor.

There are a few problems:

- Postfix does not have a SOCKS4a proxy option (in fact, no proxy
  option)

- TorDNS cannot handle MX lookups.  So running postfix on a
  transparent proxy fails because MX lookups fail.

- Torsocks has a documented feature to disable tordns, but it's
  broken.

Does Exim or Roundcube have a way around these problems?