I was wondering if I could get a bit of help with qmail configuration. I
didn't setup either of the servers so I am trying to find my way around a
tad blindly.
We have a qmail server as our primary mail server and it automatically
forwards email onto our Exchange server for internal users to collect mail.
We have MX records setup with qmail as higher priority. And I also note that
we have smtproute filled in as well which is where the auto forwarding comes
in (I hope).
What I would like to do, is to be able to reject mail on the qmail server
for users who don't exist at our site. This is people who leave the company
etc and various spammers who send to any address at our domain. Is there a
"simple" way I can have a list of users so that the mailboxes can be
verified prior to onforwarding to the exchange box. I am a bit worried if I
create a list of users in qmail-users assign file that mail will not
automatically be onforwarded to exchange. Also I cannot seem to find much
documentation about rejecting users. There is quite a lot about how to
forward on unrecognised user names, but I want to discard them :-)
John Hamill
