What makes you believe that %(description)s is valid for the Welcome email text? I only ask because this is what I see as the default first two lines of Welcome email text:
Welcome to the %(real_name)s@%(host_name)s mailing list! %(welcome)s -- You received this bug notification because you are a member of Mailman Coders, which is subscribed to GNU Mailman. https://bugs.launchpad.net/bugs/1872840 Title: (description)s variable not substituted in emails To manage notifications about this bug go to: https://bugs.launchpad.net/mailman/+bug/1872840/+subscriptions _______________________________________________ Mailman-coders mailing list [email protected] https://mail.python.org/mailman/listinfo/mailman-coders
