The mailing lists are now running with the standard Debian packaged version of Mailman.

There is one non-standard extension, the LongSig handler. I have copied the Python code for the LongSig handler into /usr/lib/mailman/Mailman/Handlers.

LongSig is currently enabled only on accu-general. The process is described in ththis Mailman FAQ item. The input filename for the modified accu-general pipeline is in /etc/mailman.