Definitely agree with you John
Safest way is to setup even a simple sendmail / qmail smtp server as the
internet facing smtp gateway and have it relay all email for your domain(s)
to (and perhaps from) your exchange servers.
Doesn't really require a high end box either. Even a first generation
pentium with 32 MB of RAM running sendmail on linux will relay a good 1 mbps
of continous incomming mail to your exchange server. In most cases it also
makes sense to use it as the outgoing mail relay for your excahnge servers
as well. Further once it is in place it would require close to zero
maintenance. If your worried the HDD may crash, create a software raid
mirror / raid5 array.
Further Note - Qmail with LDAP is a very viable, stable and hassle-free
alternative to Exchange
p.s. I personally would never run Exchange at all but then again that is
just me and my own personal preference.
Cheers
Tikiri
----- Original Message -----
From: "John Rothlisberger"