Daniel L. Miller wrote:
Ok - now that I've fixed my idiotic routing errors (don't have two NIC's
on the same network unless you know what you're doing - which I clearly
don't!), I can get back to Postfix.
From my prior configuration questions in ages past, I have been trying
to make most of my changes in master.cf, so each listener will do
exactly what I want (or to be more correct - exactly what it's TOLD,
which is not necessarily what I wanted...)
There are two processes I would like to configure, but I'm not sure
which lines would be applicable. Which line in the default master.cf
would apply to the BSD mail command on the local server? So when I'm
configuring my Postfix server, and from the command line I type "mail
someb...@hotmail.com", which listener(s) process this?
Local "mail" submission is usually done via the sendmail(1)
command. This corresponds to the "pickup" service in master.cf.
The other process would be whatever performs the send operation. If I
understand it right, whether I use the command line "mail" command or an
SMTP client, it will connect to an smtpd listener. Various Postfix
internals will munch on the information, and assuming it processed
correctly a Postfix process will then attempt to send it on the remote
destination (assuming I'm sending a mail intended for a remote
destination).
Postfix accepts mail via SMTP or sendmail(1)/pickup and puts
it in the queue. The queue manager then examines the mail to
see where it goes.
http://www.postfix.org/OVERVIEW.html
Is that step perform by either the "smtp" or "relay" lines?
Yes. Postfix decides which to use based on the address class
of the destination, can be changed by transport_maps entries.
http://www.postfix.org/ADDRESS_CLASS_README.html
What I'm actually trying to do is configure a relayhost. What I want is
to setup a Postfix listener for local SMTP connections, which will then
forward to a relayhost for spam processing (in this case, primarily
auto-whitelisting). That relayhost will then send the message back to
Postfix on another connection, and THAT listener will not have a
relayhost defined so it should attempt direct delivery to the remote
host. I know this is something relatively simple - I just seem to be
more obtuse than usual.
--
Daniel
Define content_filter in main.cf pointing to the spam
processing machine, define a new smtpd listener in master.cf
listening on a different port.
http://www.postfix.org/FILTER_README.html
Amavisd-new is software often used as a postfix
content_filter. Even if you're using something different, the
postfix setup is pretty much the same.
http://www.ijs.si/software/amavisd/README.postfix.html
There's a wealth of information to be found at
http://www.postfix.org/documentation.html
-- Noel Jones
