re: message URL in mm3 footers (after sig dashes: '\n--\n') "This list will soon be migrating to Mailman 3" https://mail.python.org/mm3/archives/list/distutils-sig@python.org/thread/IH... On Sunday, September 30, 2018, James Lu <jamtlu@gmail.com> wrote:

It has a nice GUI for people who spectate a discussion to read emails without having to subscribe to the list.

http://docs.mailman3.org/en/latest/migration.html