receiving strange emails/boards acting funny

I'm not sure if this is a hack related problem or not, but I wasn't sure who else to ask about it.

My boards are acting kind of funny - with posts displayed in the wrong order and some not showing at all. Also, after checking my pms all my forums are marked read.

Me and another admin on the site are also getting these weird emails that are just a subject line, along with an email saying that our messages were not delivered because they have an executable attachment.

This message was created automatically by mail delivery software (Exim).

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:

iluvatar@destroythering.com
This message has been rejected because it has
a potentially executable attachment drive.bat
This form of attachment has been used by
recent viruses or other malware.
If you meant to send this file then please
package it up as a zip file and resend it.

------ This is a copy of the message, including all the headers. ------
------ The body of the message is 152924 characters long; only the first
------ 102400 or so are included here.

Return-path: <onering@destroythering.com>
Received: from acb65e68.ipt.aol.com ([172.182.94.104] helo=Uque)
by liberty.vosn.net with smtp (Exim 3.35 #1)
id 175qvO-0003ZU-00
for iluvatar@destroythering.com; Thu, 09 May 2002 10:37:50 -0600
From: OneRing <OneRing@destroythering.com>
To: iluvatar@destroythering.com
Subject: The following message appears on your screen
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary=W499bT2S6eLxn4z2ya4
Message-Id: <E175qvO-0003ZU-00@liberty.vosn.net>
Date: Thu, 09 May 2002 10:37:50 -0600

--W499bT2S6eLxn4z2ya4
Content-Type: text/html;
Content-Transfer-Encoding: quoted-printable

The emails the messages are going back and forth from are both forwarders on the site in question.

I don't know if this is a virus or spam or an error or what.

The board problems also might be totally unrelated to the email one - I really don't know.
Is anyone able to help?

Apparently the board stuff is a server problem. Still nto sure about the emails.