[Mailman-Users] Can't hide sender of message

Mark Sapiro mark at msapiro.net
Thu Dec 10 18:05:02 CET 2009

>Bulletin-editor at lincolnschoolpta.net is a subscriber of the mailing list and
>the only one able to post to the mailing list.  E-mail sent to
>Bulletin-editor is forwarded to my e-mail account. 
>Bulletin at lincolnschoolpta.net is the mailing list and is managed through

So the original post was sent to both
Bulletin-editor at lincolnschoolpta.net and
Bulletin at lincolnschoolpta.net. You received a copy of the list post
from the list and you also received the copy of the message that was
sent to Bulletin-editor at lincolnschoolpta.net.

If the only copy you received from the list was the one sent from the
list to Bulletin-editor at lincolnschoolpta.net, you can suppress this
copy from the list by checking 'nodups' for the
Bulletin-editor at lincolnschoolpta.net member on the Membership
Management... -> Membership List page in the list's admin interface or
by setting the "Avoid duplicate copies of messages?" option to Yes on
the user options page for Bulletin-editor at lincolnschoolpta.net.

>Here is the header of the third e-mail.  It looks like it includes list info
>and mailman info:

This is a totally different message with different Message-ID and
subject from the ones you posted previously.

This one is addressed to

>To: <Bulletin-Editor at lincolnschoolpta.net>,
>	<bulletin-editor at lincolnschoolpta.net>, <bulletin at lincolnschoolpta.net>

I.e. it is sent twice to different spellings of
bulletin-editor at lincolnschoolpta.net which may account for your have
received 3 copies because MTAs should consider
Bulletin-Editor at lincolnschoolpta.net and
bulletin-editor at lincolnschoolpta.net to be separate recipients.

>Received: (qmail 11845 invoked from network); 8 Dec 2009 22:28:52 -0000
>Received: from unknown (HELO p3pismtp01-016.prod.phx3.secureserver.net)
>          (envelope-sender <bulletin-bounces at lincolnschoolpta.net>)
>          by smtp18-02.prod.mesa1.secureserver.net (qmail-1.03) with SMTP
>          for <tom at ramruva.com>; 8 Dec 2009 22:28:52 -0000
>Received: from a2s47.a2hosting.com ([])
>  by p3pismtp01-016.prod.phx3.secureserver.net with ESMTP; 08 Dec 2009
>15:28:52 -0700
>Received: from localhost ([] helo=a2s47.a2hosting.com)
>	by a2s47.a2hosting.com with esmtp (Exim 4.69)
>	(envelope-from <bulletin-bounces at lincolnschoolpta.net>)
>	id 1NI8XM-0008Mx-AG; Tue, 08 Dec 2009 17:28:04 -0500
>Received: from smtp4.smtp.bt.com ([])
>	by a2s47.a2hosting.com with esmtp (Exim 4.69)
>	(envelope-from <angela.evans at bt.com>)
>	id 1NI8XI-0007S6-Jq; Tue, 08 Dec 2009 17:28:01 -0500
>Received: from E03MVC4-UKBR.domain1.systemhost.net ([]) by
>	smtp4.smtp.bt.com with Microsoft SMTPSVC(6.0.3790.3959); 
>	Tue, 8 Dec 2009 22:27:55 +0000
>X-MimeOLE: Produced By Microsoft Exchange V6.5
>Content-class: urn:content-classes:message
>MIME-Version: 1.0
>Content-Type: multipart/mixed;
>Date: Tue, 8 Dec 2009 22:25:55 -0000
><6A375F4747F4B14EB41AF6728C452AFF02200439 at E03MVC4-UKBR.domain1.systemhost.net>
>X-MS-Has-Attach: yes
>Thread-Topic: [LSPTA Bulletin 24]  Lincoln News- Cookie Dough is here!!! 
>Thread-Index: Acp4R4oMftaqBO0+T/+5kewhonrw5wADd5PM
><6A375F4747F4B14EB41AF6728C452AFF058023DF at E03MVC4-UKBR.domain1.systemhost.net>
>To: <Bulletin-Editor at lincolnschoolpta.net>,
>	<bulletin-editor at lincolnschoolpta.net>, <bulletin at lincolnschoolpta.net>
>X-OriginalArrivalTime: 08 Dec 2009 22:27:55.0904 (UTC)
>	FILETIME=[B04F9800:01CA7855]
>From: Lincoln School PTA Bulletin <bulletin at lincolnschoolpta.net>
>Subject: [LSPTA Bulletin 24]   Lincoln News- Cookie Dough is here!!!
>X-BeenThere: bulletin at lincolnschoolpta.net
>X-Mailman-Version: 2.1.11.cp3
>Precedence: list
>Reply-To: Bulletin-Editor at lincolnschoolpta.net
>List-Id: Lincoln School PTA Bulletin
>	<bulletin_lincolnschoolpta.net.lincolnschoolpta.net>
>	<mailto:bulletin-request at lincolnschoolpta.net?subject=unsubscribe>
>List-Post: <mailto:bulletin at lincolnschoolpta.net>
>List-Help: <mailto:bulletin-request at lincolnschoolpta.net?subject=help>
>	<mailto:bulletin-request at lincolnschoolpta.net?subject=subscribe>
>Sender: bulletin-bounces at lincolnschoolpta.net
>Errors-To: bulletin-bounces at lincolnschoolpta.net
>X-AntiAbuse: This header was added to track abuse, please include it with
>any abuse report
>X-AntiAbuse: Primary Hostname - a2s47.a2hosting.com
>X-AntiAbuse: Original Domain - ramruva.com
>X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12]
>X-AntiAbuse: Sender Address Domain - lincolnschoolpta.net
>X-Nonspam: Whitelist
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Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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