Configure SMTP settings

Having trouble getting the correct settings for smtp servers.

I have a web application the runs under two load balanced web servers.  Each server is running Windows 2003 Web Server and IIS 6.

I have set the FQDN in smtp server to "ultracamp.com" (the domain)

Here is a return response I recieved that is typical.

******************************
Return-Path: <notice@ultracamp.com>
Received: (qmail 21806 invoked by uid 0); 18 Jun 2008 21:29:15 -0000
Received: from unknown (HELO ultracamp.com) (72.13.100.99)
  by 0 with SMTP; 18 Jun 2008 21:29:15 -0000
Received: from ucweb1 ([127.0.0.1]) by ultracamp.com with Microsoft SMTPSVC(6.0.3790.3959);
       Wed, 18 Jun 2008 17:29:09 -0400
MIME-Version: 1.0
From: loliveira@ontario.org
Sender: notice@ultracamp.com
To: suzyg@3below.com
Reply-To: loliveira@ontario.org
Date: 18 Jun 2008 17:29:09 -0400
Content-Type: multipart/alternative;
 boundary=--boundary_6057_b902245a-dd9b-4698-a116-7cdb2a38e4d1
Return-Path: notice@ultracamp.com
Message-ID: <UCWEB1HFKpO2DTSWFSS00002678@ultracamp.com>
X-OriginalArrivalTime: 18 Jun 2008 21:29:09.0000 (UTC) FILETIME=[57DF4080:01C8D18A]
*********************************

It would seem there are two issues in the respone.
1. from unknown (HELO ultracamp.com)
2.  from "ucweb1 ([127.0.0.1])".....It really shouldn't show the computer name......should it?

I don't know what to do to correct this.

Thanks for your help.