A subscriber's system has been bouncing all LISTSERV messages. The
IT manager at the subscriber's site reported "They are being blocked
by our firewall since they are using a non-standard Received header.
They need to straighten their act out!" and quoted the following log
entry:

> 11246618 11/20/02 13:04:36 smtp-proxy[31031] [164.76.102.107:63666
> 192.168.0.29:25] (spamscreen) Found spam from 164.76.102.107 (forged
> Received: header) from [log in to unmask]

These are the headers I have of the offending message:

> Return-Path: <[log in to unmask]>
> Received: (qmail 4368 invoked from network); 20 Nov 2002 18:04:09 -0000
> Received: from listserv.linguistlist.org (HELO listserv) (164.76.102.107)
    by listserv.linguistlist.org with SMTP; 20 Nov 2002 18:04:09 -0000
> Date:         Wed, 20 Nov 2002 13:04:09 -0500
> From:         "L-Soft list server at The LINGUIST List. (1.8d)"
>               <[log in to unmask]>
> Subject:      Welcome to the Word Wide Words list
> To:           A N Other <[log in to unmask]>
> cc:           [log in to unmask]
> Reply-To:     [log in to unmask]
> X-LSV-ListID: WORLDWIDEWORDS

I suspect I know what is happening, but I would be grateful for an
authoritiative answer, as much for my own information as to instruct
the subscriber's IT staff!


--
Michael Quinion
Editor, World Wide Words
E-mail: <[log in to unmask]>
Web: <http://www.worldwidewords.org/>