Pb with the ML?

[rixed]

When writting to this ML I often receive an error, apparently from a
SMTP of another subscriber. Here is the enveloppe of the email that
triggered the error:

Received: from mail pickup service by bdc.stelco.local with Microsoft SMTPSVC;
         Tue, 14 Jun 2011 12:23:29 +0500
x-endofinjectedxheaders:4763
Received: (qmail 815 invoked by uid 110); 14 Jun 2011 12:22:19 +0500
Delivered-To: address@hidden
Received: (qmail 811 invoked from network); 14 Jun 2011 12:22:19 +0500
Received: from sweeper4.dhivehinet.net.mv (202.1.203.200)  by 
host02.dhivehinet.net.mv with (DHE-RSA-AES256-SHA encrypted) SMTP; 14 Jun 2011 
12:22:19 +0500
Received: from lists.gnu.org (lists.gnu.org [140.186.70.17]) by 
sweeper4.dhivehinet.net.mv with ESMTP id 3K7aOp6EQK4LMEF0 (version=TLSv1 
cipher=AES256-SHA bits=256 verify=NO) for <address@hidden>; Tue, 14 Jun 2011 
12:22:00 +0500 (MVT)
Received: from localhost ([::1]:37812 helo=lists.gnu.org)       by 
lists.gnu.org with esmtp (Exim 4.71) (envelope-from <address@hidden>)        id 
1QWNwj-0000qp-2E     for address@hidden; Tue, 14 Jun 2011 03:21:57 -0400
Received: from eggs.gnu.org ([140.186.70.92]:43524)     by lists.gnu.org with 
esmtp (Exim 4.71) (envelope-from <address@hidden>) id 1QWNwV-0000qH-9c    for 
address@hidden; Tue, 14 Jun 2011 03:21:45 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)        
(envelope-from <address@hidden>) id 1QWNwS-0000zu-6k    for address@hidden; 
Tue, 14 Jun 2011 03:21:42 -0400
Received: from dangi.happyleptic.org ([92.243.13.193]:37501)    by eggs.gnu.org 
with esmtp (Exim 4.71)  (envelope-from <address@hidden>) id 1QWNwR-0000ut-Qc    
for address@hidden; Tue, 14 Jun 2011 03:21:39 -0400
Received: from extranet.securactive.org ([82.234.213.170]       
helo=ccellier.rd.securactive.lan)       by dangi.happyleptic.org with esmtp 
(Exim 4.72) (envelope-from <address@hidden>) id 1QWNyn-0003OY-51    for 
address@hidden; Tue, 14 Jun 2011 09:24:05 +0200
Received: from rixed by ccellier.rd.securactive.lan with local (Exim 4.72)      
(envelope-from <address@hidden>) id 1QWNwF-00041G-0V    for address@hidden; 
Tue, 14 Jun 2011 09:21:27 +0200
Date: Tue, 14 Jun 2011 09:21:27 +0200
From: address@hidden
To: address@hidden
Subject: Guile hangs for minutes when many files are opened (1.8.7)
Message-ID: <address@hidden>

Don't know if there is something doable about this. Maybe unsubscribing
the offended subscriber?