Public bug reported:
Using Mailman version 2.1.33, that is the default list software under cPanel.
Managing multiple lists and have this same issue for a long time now.
Emergency moderation of all list traffic is On, but list members should be able to send to the list after their message is approved by a moderators.
However, only messages that are actually send from a moderator to the list are actually distributed to the list.
Messages send by list members show up in the pending requests moderation queue, but when approved by the moderator they just disappear and are not sent out to the list.
This bug appears to be reproducible consistently across multiple installations of Mailman.
** Affects: mailman Importance: Undecided Status: New
See https://wiki.list.org/x/4030641 and if you have access to Mailman's logs, see https://wiki.list.org/x/4030723 and particularly Mailman's error.log. If you don't have access to logs, contact the cPanel host.