[afnog] Relay denied

[Colin Johnston]

Hi Brian,
Sendmail config is simple to understand if you trace through rules.
http://www.sendmail.org/ for info on how to configure

I have run large scale stable sendmail configs and 24hr uptime colo configs
fine with sendmail. Also used exim systems are they are harder to understand
if concepts are not understood from sendmail.

I for one would be happy doing a sendmail system since it allows you to
understand how the protocol works. The check rcpt rules are there for a
reason.
Exim could also be used instead but it is always best to understand the
problem since sendmail config may have other config fixs which exim does not
do or that requires extra work.

Colin Johnston
Satsig sysadmin