/blacklist

Set flood detection limit. When a user sends more than the set number of messages in 10 seconds, they get auto-muted. Protects your group from spam attacks.

Ban a user from the group. They will be removed and unable to rejoin until unbanned. Optionally provide a reason for the ban.

Enable CAPTCHA verification for new members. New joiners must solve a simple challenge before they can post. Stops automated spam bots from flooding your group.

Create and manage ban federations across multiple groups. When you ban someone in one group, they get banned in all federated groups automatically.