[Exim] How do I relax ACL?

I found several disturbing entries in my reject log.... They all resemble the
entry below... How do I get exim to accept these messages? Or would I be
better off contacting the offending e-mail senders and having them fix their
broken mail?

2003-07-31 20:29:16 19iOjK-0003rm-3g H=orb.pobox.com [216.65.124.72]
F=<bounces@
MCSEguide.com> rejected after DATA: malformed address:
<DailyQuest@???
>\n may not follow DailyQuest@??? : failing address in "From" header

i
s: DailyQuest@??? <DailyQuest@???>
Envelope-from: <bounces@???>
Envelope-to: <lormar@???>
P Received: from orb.pobox.com ([216.65.124.72])
        by landau.labnet.com with esmtp (Exim 4.20)
        id 19iOjK-0003rm-3g
        for lormar@???; Thu, 31 Jul 2003 20:29:14 -0500
P Received: from orb.pobox.com (localhost [127.0.0.1])
        by orb.pobox.com (Postfix) with ESMTP id 4ACAD156315
        for <lormar@???>; Thu, 31 Jul 2003 21:29:10 -0400 (EDT)
  Delivered-To: cdaehn@???
P Received: from mcseguide1.mcseguide.com (mcseguide1.mcseguide.com
[63.122.170.
45])
        by orb.pobox.com (Postfix) with SMTP id 3A217156042
        for <cdaehn@???>; Thu, 31 Jul 2003 21:26:21 -0400 (EDT)
I Message-ID: <16480640-220038510314359@???>
  X-EM-Version: 6, 0, 1, 0
  X-EM-Registration: #00B06306109813000D50
  X-Sender: bounces@???
  X-MailPersonHistoryID: 5035
  X-MailPersonSubscriberID: 53040
  X-MailPersonEmail: cdaehn@???
F From: DailyQuest@??? <DailyQuest@???>
T To: "Cory Daehn" <cdaehn@???>
  Subject: 70-221 Designing Windows 2000 Network Infrastructure Exam Question
#3
01
  Date: Thu, 31 Jul 2003 20:03:14 -0400
  MIME-Version: 1.0
  Content-Type: text/html; charset=US-ASCII