Best practice: sendmail and SMTP auth

[Doug Poland]

Hello,

Not sure if this is the most appropriate place for this question, but
since all my servers are FreeBSD 6.x/7.x, I'll give it a go...

I am considering setting up SMTP auth on a number of sendmail
instances that I control.  After much googling and reading, it is not
clear to me that a server with SMTP auth configured/enabled can relay
mail in both auth and non-auth modes.

If one sendmail configuration cannot accommodate both SMTP auth and
access.db, does one setup a dedicated SMTP auth host with a SMART_HOST
option and feed incoming email to an non-auth instance of sendmail?

Sorry if my terminology is ambiguous, I'm not a sendmail professional
by day.


--
Regards,
Doug