DNS || sendmail? (or both?)

[Gary Kline]

	Hi Y'all,

	I've been wondring if there is a way of tweaking sendmail
	to send mail from the outside to my internal//private hosts--
	with the same username and the FQDN.

	E.g.:  Outside thought.org, "root at tao.thought.org" bounces
	while "root at ns1.thought.org" is recognized because 
	ns1.thought.org is 216.231.43.140.   Likewise with mail
	to "root at ethic.thought.org" or "root at plato.thought.org".

	Anybody know what magic incantations are necessary to make
	my mail server aware of my internal hosts??  If this is a
	DNS matter, I didn't catch it in DNS AND BIND (4th ed).

	thanks in advance,

	gary

-- 
   Gary Kline     kline at thought.org   www.thought.org     Public service Unix