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

[Mark Sapiro]

TomSherlock 
>
>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
>mailman.


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.


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>          for <tom at ramruva.com>; 8 Dec 2009 22:28:52 -0000
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>Date: Tue, 8 Dec 2009 22:25:55 -0000
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>Thread-Topic: [LSPTA Bulletin 24]  Lincoln News- Cookie Dough is here!!! 
>Thread-Index: Acp4R4oMftaqBO0+T/+5kewhonrw5wADd5PM
>References:
><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>
>List-Unsubscribe:
><http://lincolnschoolpta.net/mailman/options/bulletin_lincolnschoolpta.net>,
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>List-Archive:
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>List-Post: <mailto:bulletin at lincolnschoolpta.net>
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>List-Subscribe:
><http://lincolnschoolpta.net/mailman/listinfo/bulletin_lincolnschoolpta.net>,
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>X-AntiAbuse: This header was added to track abuse, please include it with
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>-- 
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>
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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