I lowered the default to 60 by adjusting hte POSTGREY_OPTS for debugging purposes.
Oh and the missing /etc/var/mail.log was an error on my part. I recreated it with the appropriate chmod switch and postfix is now writing to the mail.log as it should.
I am actually able to send mail out now from the domain to other addresses, and I know mail is arriving as it's shown in the log but, of course, I'm just not quite sure where to look for it... presumably somewhere via mysql.
I thought the "mail" command would show it to me but no such luck.
There is some more progress on the project and I thank you again for your input.