[exim] DATA: colon expected after route list:

Hi,
I have a host that is trying to send mail to my smtp server running exim 4.44, and
its rejecting; The wired part is most of the time email makes through
without any errors, I had the user resend the message, and it went through
jsut fine.... any suggestions? or any way to configure exim to accept mail
from remote-company, without checking???

PS. attached is the log from rejectlog

Thanks
Bikesh

2005-03-10 09:30:16 1D9Og3-00020x-PN H=mail02.enterhost.com (remote-company.com) [1.1.1.1]:4695 I=[192.168.101.103]:
25 F=<user@???> rejected after DATA: colon expected after
route list: failing address in "To" header is: @localhost,\n    <user@???>
Envelope-from: <user@???>
Envelope-to: <user@???>
P Received: from mail02.enterhost.com ([69.93.13.234]:4695
helo=remote-company.com)
        by mailserver.company.com with smtp (Exim 4.44 #4 (Debian))
        id 1D9Og3-00020x-PN
        for <user@???>; Thu, 10 Mar 2005 09:30:16 -0500
  Date: Thu, 10 Mar 2005 08:30:14 -0600
I Message-Id: <200503100830.AA109707458@???>
  Mime-Version: 1.0
  Content-Type: multipart/mixed;boundary="==IMail_v8.1=="
F From: "Corp User" <user@???>
R Reply-To: <user@???>
T To: <user2@???>,
    @localhost,
    <user@???>
  Subject: 2004 results
  X-Mailer: <IMail v8.13>
  X-Attachments: ms_sucks.xls;