So, after our long(ish) discussion on mail/postfix/spamassasin/etc last night, I thought I'd run through a few things.
...OK -- I checked out a few things -- one of them to confirm I was *not* running an open relay ...
Based upon my own checks and one I found on the net, it's not an open relay ...
if you're interested, from the machine you want to test, goto:
telnet rt.njabl.org 2500
that will initiate a number of checks - takes about a minute or so .. check your mail logs and the logs on the telnet screen for output.
Dan.