ejabberd-mod-spam-filter - 0.2023.01.25~dfsg0-1 main

This module allows for filtering spam messages and subscription requests
received from remote servers based on lists of known spammer JIDs and/or
URLs mentioned in spam messages. Traffic classified as spam is rejected
with an error (and an [info] message is logged) unless the sender is
subscribed to the recipient's presence. An access rule can be specified
to control which recipients are subject to spam filtering