Postfix as honeypot - some Qs

Hi, everyone,

This is a repeat from the honeypots mailing list, for lack of a reply
with specifics concerning postfix: I have been trying to design an
anti-spam honeypot, utilizing a postfix server. I have gone through the
following material:

http://www.trackinghackers.com/solutions/sendmail.html
http://www.securityfocus.com/infocus/1747
http://www.securityfocus.com/infocus/1748

and I liked the first one. Here are the issues I am dealing with, right
now (as a relative newbie in postfix, but having no other alternative
to work with, at the moment):
- cannot find the equivalent of some the options mentioned in the
sendmail-based article, related to postfix. I want the server to APPEAR
as an open relay for everybody (I know - trust me - I do not want to
relay any email, except for what I will be controlling - thus having
enabled defer_transports = smtp), but I am having problems in getting
mynetworks and smtpd_etrn_restrictions right, to achieve this, e.g. I
am not sure how to set the mynetworks for everybody (0.0.0.0/0 does not
seem to work?!?), while being afraid that whatever I come up with, will
be damaging with smtpd_etrn_restrictions = permit_mynetworks, reject
.... any ideas?!?
- wondering if there could be more about such a setup, as far as
logging/processing of logs/reporting (perhaps automatic - I am thinking
here of some automatic way of informing the spamcop.net of the
world?!?) - this more of a long shot.

One link someone was kind enough to point me to was:

http://www.codecutters.org/spam/smtphoneypot.html ... which I am still
working on digesting the concepts of ...

Any ideas/suggestions/links to help me understanding what more could I
get out of the above, and postfix capabilities, would be highly
appreciated. I have read some of the anti-spam links from the
postfix.org, but I cannot seem to get this one right:

TIA,
Stef