Terabytes - 6:12 pm on Apr 18, 2012 (gmt 0)

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

insideuser@example.com
SMTP error from remote mail server after MAIL FROM:<outsideemail@otherdomnain.net>
SIZE=3494:
host mx.example.com [#*$!.#*$!.#*$!.#*$!]:
503 Bad sequence of commands

------ This is a copy of the message, including all the headers. ------

Return-path: <outsideemail@otherdomnain.net>
Received: from 126.sub-166-249-130.myvzw.com ([#*$!.#*$!.#*$!.#*$!]:12934
helo=[10.166.17.#*$!])
by simon.genwebserver.com with esmtpsa (TLSv1:RC4-MD5:128)
(Exim 4.77)
(envelope-from <outsideemail@otherdomnain.net> )
id 1SKZCs-000W2e-Hk
for insideuser@example.com; Wed, 18 Apr 2012 12:02:19 -0600
Message-ID: <fe030a40-fe81-4864-8292-fae1c0d8d8f4@blur>
From: "Outside User"<outsideemail@otherdomnain.net>
To: insideuser@example.com
Date: Wed, 18 Apr 2012 13:02:33 -0500
X-Mailer: Motorola android mail 1.0
MIME-Version: 1.0
Subject: Re: test 1:01
X-Priority: 3
References: <E4626E3AB8061B4CA439E32417E9891701863E0D@name.ourmailserver.local>
In-Reply-To: <E4626E3AB8061B4CA439E32417E9891701863E0D@name.ourmailserver.local>
Content-Type: multipart/alternative; boundary="Motorola-A-Mail-f6o1C2zD3MaJjhlz"

--Motorola-A-Mail-f6o1C2zD3MaJjhlz
Content-Type: text/plain; Format="Flowed"; DelSp="Yes"; charset="US-ASCII"
Content-Transfer-Encoding: 7bit

=================

Any clues?
We've actually been down for 2 days now... the boss is getting edgy... :)

thanks so much for your time...
Tera