Maintain Group Quality & Channel Web Previews
Bouncer bot maintains group quality by monitoring inactivity and saving server resources by pruning stale users. It features inactivity reports, automatic two-stage warnings & kicks, VirusTotal security inspection, CMPing server monitoring, and clean web previews & RSS feeds for public channels.
✨ Core Capabilities
Inactivity Reports & Auto-Kick
Monitors member activity, provides inactivity reports (/bounce), and automatically purges stale members with two-stage warnings and cryptographic fingerprint exemptions.
Public Channel Previews & RSS
Web previews for registered Delta Chat broadcast channels with live feeds, media attachments, QR join modals, and standard RSS 2.0 feeds.
Group & Channel Catalogs
Browse public and private group chats (/chats) and public broadcast channels (/dchannels) with real-time membership counts and join workflows.
CMPing Connectivity Monitor
Continuous network health checks across mail relays and Delta Chat servers, with incident-based dynamic alerting and root-cause fault isolation.
VirusTotal Security Inspection
Inspect links, files, and attachments against 70+ antivirus engines with FIFO rate limiting and live in-place message updates.
Resilient Multi-Relay Failover
Automatic mail server failover with round-robin relay switching and exponential backoff retry to guarantee deliverability.
⌨️ Popular Commands
| Command | Description |
|---|---|
/bounce |
Check user activity status or list group members near the inactivity threshold |
/autokick |
Configure automatic inactivity warnings and kicks (Admin only) |
/dchannels |
Browse the catalog of public Delta Chat channels with web preview links |
/chats |
Browse the catalog of registered group chats available to join |
/virus <url/file> |
Scan a link or attached file for security threats with VirusTotal |
/cmping <server> |
Ping mail relays to/from specified target servers |
/top |
Display the 10 most active group members over the last 24 hours |
/away [text] |
Set vacation/away status (auto-notifies users who mention or quote you) |
