I am trying to change our DMZ to be more straightforward in how it
sends email. I have created a DMZ email hub that will forward email to
an internal system. I am using sendmail 8.17.7 and mailertables. When
I send a message to a user that exists on the internal network I get a
"User unknown" error on the external email hub.

My sendmail.mc file


divert(0)dnl
VERSIONID(`$Id: generic-solaris.mc,v 8.13 2001/06/27 21:46:30 gshapiro
Exp $')
OSTYPE(solaris2)dnl
DOMAIN(generic)dnl
FEATURE(`relay_entire_domain')
FEATURE(`mailertable',`dbm -o -T<TMPF> /etc/mail/mailertable')dnl
FEATURE(`access_db', `dbm -o -T<TMPF> /etc/mail/access')dnl
FEATURE(`delay_checks')dnl
MAILER(local)dnl
MAILER(smtp)dnl
MASQUERADE_AS(junk.com)
define(`confTO_IDENT',`0s')dnl


My mailertable

junk.com esmtp:[blocker01.junk.gov]
..junk.com esmtp:[blocker01.junk.gov]

Any idea what I am doing wrong? I use to use an MRS relay rule set but
I wanted to switch to using a default sendmail configuration.

Thanks

Dave