This software contains hooks to use external cryptographic
packages to do traffic encryption over the SMTP channel.
Because for for example US Government's view of the things,
you might get nasty comments from US export control people
if you include the sources of this MTA to e.g. a CDROM.
I am not a lawyer with detailed knowledge of what is allowed,
and what isn't for US citicens, but you can always point to
the sources at ftp://ftp.funet.fi/pub/unix/mail/zmailer/
and at the web-server http://www.zmailer.org/
There is a way to quickly construct US ITAR compliant source,
by executing command 'make dist-usa', the resulting TAR
package is exportable out from USA.
UPDATE 28-May-2000: US Crypto SOURCE export rules have been
relaxed, but binary distributions are still
fairly strict -- doesn't make much sense
if one can simply collect together suitable
sources and simply compile it...
/Matti Aarnio - 1999-May-14