Extra archivers for Mailman 3.
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Extra Mailman Archivers

This contains some extra archivers to be used with Mailman 3. Currently there are two archivers, MonthlyArchiver, and Pipermail.


Make sure to have the following packages installed first:

apt install python3-pip python3-setuptools python3-wheel


pip3 install .


This archiver stores each message in a maildir folder for the message's year and month.

The motivation behind MonthlyArchiver was to avoid storing thousands of messages in a single directory, which the Prototype archiver currently does.

Example directory structure:

|-- monthly_archiver/
    |-- mylist@mydomain.com/
        |-- 2021/
            |-- April/
            |   |-- cur/
            |   |-- new/
            |   |   |-- 1618032020.M509265P87123Q1.mail
            |   |   |-- 1618032509.M464173P87208Q1.mail
            |   |-- tmp/
            |-- May/
                |-- cur/
                |-- new/
                |-- tmp/

To enable this archiver, add the following to your mailman.cfg:

class: extra_mailman_archivers.monthly_archiver.MonthlyArchiver
enable: yes


This archiver attempts to add messages to Pipermail, the archiver for Mailman 2. An existing Mailman 2 installation is required.

If the mailing list does not exist in the Mailman 2 directory, you must create it first. Use the newlist-pipermail script in the pipermail directory after copying it to the bin directory where Mailman 2 is installed. It works the same way as the traditional newlist script except that it does not communicate with the MTA. Note: by default, this will create a public archive; to make it private, unlink the appropriate folder in the archives/public directory where Mailman 2 is installed.

To enable this archiver, add the following to your mailman.cfg:

class: extra_mailman_archivers.pipermail.Pipermail
enable: yes

The default list URL for this archiver is http://$domain/pipermail/$short_listname (Mailman adds a List-Archive header to each message with this value). The default Mailman 2 directory is /var/lib/mailman. To change either of these values, add the following to the pipermail section in mailman.cfg:

configuration: /etc/mailman3/mailman-pipermail.cfg

Then, in /etc/mailman3/mailman-pipermail.cfg, set base_url and/or mailman2_dir appropriately, e.g.

base_url: http://$domain/old/pipermail/$short_listname

To hide the list URL from each message, simply set base_url to an empty string: