MCP tool
check_rbl
Check MX server IP reputation against 6 DNS-based Real-time Blocklists (SpamCop, UCEProtect, Mailspike, Barracuda, PSBL).
The check_rbl tool is provided by BlackVeil DNS & Email Security Scanner. Install that server in your AI client and the assistant can call it directly.
Servers exposing check_rbl
From the publisher:Check MX server IP reputation against 6 DNS-based Real-time Blocklists (SpamCop, UCEProtect, Mailspike, Barracuda, PSBL). Resolves MX hosts to IPs first.
Install BlackVeil DNS & Email Security Scanner →Parameter Type Description domain*string Domain to check (e.g., example.com) force_refreshboolean Bypass cache and run a fresh check. Useful after DNS changes. formatstring Output verbosity. Auto-detected if omitted.
Tool lists are read from the live servers (or, for packaged servers, from their documentation) each morning, so this reflects what they exposed at the last refresh. Search all tools.