I am new to all this. I installed Postfix and it is mostly working as I want it to. However, I have a list of small issues that need to be resolved.

Where is the best place to get help for Postfix? Is there a forum just for Postfix?

My current question: the DenyHosts report is sent out from nobody@localhost. How do I change that?

Here's an example:

From: DenyHosts <nobody@localhost>
To: root@localhost
Subject: DenyHosts Report
Date: Mon, 26 Jan 2009 10:46:03 -0500

How do I control/change the sending (and receiving) accounts? Thank you.
Dave

P.S. Background info:
I'm using Google Apps/Domain and I set up Postfix according to this guide:
http://behindmyscreen.newsvine.com/_...101-easy-steps

Then I applied some spam settings (without understanding a word of it) from this guide:
How To Fight Spam Using Your Postfix Configuration
http://www.howtoforge.com/virtual_postfix_antispam

And I have read a bunch of stuff, starting with this:
https://help.ubuntu.com/community/Postfix