[Mailman-Users] Hide Senders IP-Adress (not Email-Adress) whensending mail to list

Mark Sapiro mark at msapiro.net
Mon Aug 29 19:12:16 CEST 2011

Sven Reissmann wrote:
>For mailman I found the anonymous list option, that will hide the
>email-address of the original sender but not his ip address.

What Mailman version is this? Beginning with Mailman 2.1.13, all the
Received: headers are removed and some others in addition to the
original anonymized set are removed or munged. I realize this is not
what you say you want, but I think that currently, all header
information that could possibly even partially identify the poster is
removed from posts to anonymous lists.

>What I want
>to do is leaving the senders email-address in the header but hide the
>ip-address (or replace it by the list servers address).
>[The reason for this (in case this raises questions) are the data
>retention efforts of germany and other countries.]
>So my questions would be:
>- Is there a possibility for mailman itself to replace the senders
>address by lets say the mailservers address (IP not Mail).

Mailman could easily do this with a custom handler. See

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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