com.postboxservices/postbox-tools · v0.1.1 · communication
com.postboxservices/postbox-tools is healthy: it completed an MCP handshake in 1691 ms and exposes 8 tools. It scores 61/100.
Free email checks: 24 blacklists, spoofing/BEC grade, redirect tracing, email spam test, WHOIS.
Endpoint: https://mcp.postboxservices.com/mcp (streamable-http)
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| health | 19.2 / 25 |
| authEase | 15 / 15 |
| toolQuality | 15 / 15 |
| maintenance | 7 / 15 |
| adoption | 0 / 10 |
| usage | 0 / 10 |
| security | 5 / 10 |
Scoring v0.3, computed 2026-10-14T21:15:56.922Z.
| Checked (UTC) | Status | Latency | Error |
|---|---|---|---|
| 2026-10-14T21:15:41.089Z | Healthy | 1691 |
check_blacklist | Check a domain against domain blacklists (Spamhaus DBL, SURBL, URIBL and others), or an IP address against 24 IP blacklists including Spamhaus ZEN, Barracuda and SpamCop. Checks the exact target given: domains are not resolved to IPs. Returns per-list listing status. |
check_spoofability | Grade how exposed a domain is to email spoofing and business email compromise, from its public DNS (SPF, DMARC policy strength, alignment, live lookalike domains). Returns an A-F grade with findings. |
trace_redirect | Follow a URL server-side through every HTTP redirect hop to its real final destination - per-hop status, IP, TLS and timing, plus phishing/deliverability flags (cross-domain jumps, https downgrades, meta/JS redirects). Fetching is SSRF-hardened (private ranges blocked, HTTPS-only, per-hop validation |
create_mailtest | Create a disposable test address for a full email deliverability audit (score /10: SPF, DKIM, DMARC + alignment, blacklists, reverse DNS, SpamAssassin content, Gmail/Yahoo bulk-sender compliance). The USER must then send an email from the system they want to test to the returned address, after which |
get_mailtest_result | Fetch the score and breakdown of a mail test created with create_mailtest, once the user has sent their email to the disposable address. |
analyze_eml | Run a deliverability/content analysis on a raw RFC 822 email (.eml source: full headers + body). IMPORTANT LIMITS: with no live SMTP session, SPF, blacklist and reverse-DNS cannot be verified from a file - for the authoritative score use create_mailtest instead. |
get_domain_age | Get a domain's registration date and age (young domains have weak sending reputation). |
whois_lookup | WHOIS summary for a domain: registrar, created/updated/expires dates, nameservers, DNSSEC, status flags. |