6.2.2 Main configuration settings

First, you need to add some macros to the top of your Exim config file. These just make the director (router) and transport below a bit cleaner. Obviously, you'll need to edit these based on how you configured and installed Mailman.

    # Home dir for your Mailman installation -- aka Mailman's prefix
    # directory.
    MAILMAN_HOME=/usr/local/mailman
    MAILMAN_WRAP=MAILMAN_HOME/mail/mailman

    # User and group for Mailman, should match your --with-mail-gid
    # switch to Mailman's configure script.
    MAILMAN_USER=mailman
    MAILMAN_GROUP=mailman