Import of DragonFly Mail Agent

[Thomas Mueller]

from Mark Felder:

> Yes, however the Sendmail in base on FreeBSD 8 and 9 is compiled against
> OpenSSL < 1.0 which means it's missing support for TLS 1.2, SNI, and
> other modern best practice features.

That suggests putting sendmail to ports rather than base system, so that updates would not depend on FreeBSD system release timing.

Such an argument was the big reason why pkg (pkgng) is a port rather than part of base system.
 
Tom