Mail Loop - How to resolve?

[AdminStooge]

Received the following email:

-----Original Message-----
From: postmaster@IIS SMTP Server
Sent: Tue, 22 Nov 2005 15:12:38 -0500
To: Original Sender (External)
Subject: Delivery Status Notification (Failure)

This is an automatically generated Delivery Status Notification. Unable to deliver message to the following recipients, because the message was forwarded more than the maximum allowed times. This could indicate a mail loop. Email address

Attached Message
From: Original Sender (External)
Date: Tue, 22 Nov 2005 12:46:44 -0500
Subject: 3 fax page(s) from (813)920-8726

You received a 3 page fax at 12:46 PM on Tue, Nov 22 2005 from Original Sender (External). Note: This is an automated notification; please DO NOT REPLY to this message.

 

[Zelandakh]

Is it possible the original came from your domain? It could well be spoofed.

 

[Jakel]

I had a similar problem last week. I accidentally had the persons mail forwarded to themselves, that caused the loop.