The suggestion about using @cindex was indeed better, here is a small
patch.
--- maintain.texi.~1.279.~ Sun Jun 14 23:03:07 2020
+++ maintain.texi Sun Oct 18 19:30:59 2020
@@ -5,7 +5,7 @@
@c For double-sided printing, uncomment:
@c @setchapternewpage odd
@c This date is automagically updated when you save this file:
-@set lastupdate April 24, 2020
+@set lastupdate October 18, 2020
@c %**end of header
@documentencoding UTF-8
@@ -1266,8 +1266,11 @@
@url{https://www.gnu.org/software/README.accounts.html} (@pxref{GNU
Accounts and Resources}).
+@cindex new-mailing-list@@gnu.org
+@cindex mailman@@gnu.org
But if you don't want to learn how to do those things, you can ask
-@email{new-mailing-list@@gnu.org} to help you.
+@email{new-mailing-list@@gnu.org} to help you. If you are having
+troubles using a list, you can ask @email{mailman@@gnu.org}.
@cindex spam prevention
You should moderate postings from non-subscribed addresses on your
