Why would this get accepted by Listserv without a confirmation?

Eric

---- Original Message ----
From: [log in to unmask]
To: [log in to unmask]
Subject: Re: FW: TOLLER-L: [log in to unmask] left the list
Date: Mon, 9 Apr 2007 10:33:08 -0400

>This looks like the MSN server is automatically sending a response to
>the unsubscribe address.
>
>-Chris