postbox-tools
Free email checks: 24 blacklists, spoofing/BEC grade, redirect tracing, email spam test, WHOIS.
likely compatible
Answered an MCP initialize with no credentials; use auth 'None'.
Rule R2a · what this means · Not tested in Copilot Studio.
| Registry name | com.postboxservices/postbox-tools |
| Endpoint used for verdict | https://mcp.postboxservices.com/mcp |
| Transports | streamable-http |
| Auth (Copilot Studio setting) | None (open) |
| Last endpoint check | 2026-10-20T18:12:15Z · initialize OK |
| Website | https://postboxservices.com/mcp/ |
| Version | 0.1.1 |
| Registry updated | 2026-09-26 |
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Is this wrong or out of date? Email us. Data built 2026-10-20.