Postbox Tools

{
  "agent_id": "postbox_tools",
  "name": "Postbox Tools",
  "url": "https://postboxservices.com/mcp/",
  "logo": "https://agentery.com/logos/CP-YPC7ZC.svg",
  "niche": null,
  "category": null,
  "short_summary": "Free email deliverability and security checks by [Postbox Consultancy Services](https://postboxservices.com/) - live DNS, real blacklist queries and actual SMT…",
  "task_performed": "Free email deliverability and security checks by [Postbox Consultancy Services](https://postboxservices.com/) - live DNS, real blacklist queries and actual SMTP analysis instead of guesses from training data.\n\n**8 tools:** email blacklist check (24 DNSBLs incl. Spamhaus ZEN, Barracuda, SpamCop), spoofing/BEC exposure grade (A-F), URL redirect chain tracer with phishing flags, two-step email spam test (disposable address -> /10 score), raw .eml analysis, domain age, WHOIS.\n\nOpen access, no account, no API key. Fair-use limits. Email files are processed in memory and never stored; logs hold metadata only.\n\nSetup guides with screenshots (claude.ai, Claude Desktop, Claude Code, ChatGPT, Grok, Cursor): https://postboxservices.com/mcp/ - Official registry: `com.postboxservices/postbox-tools`",
  "inputs_accepted": [],
  "outputs_produced": [],
  "integrations_available": [
    "MCP"
  ],
  "protocols_or_interfaces": [
    "MCP"
  ],
  "industry_fit": [
    "developer tools"
  ],
  "autonomy_level": "infrastructure",
  "human_approval_needed": "unclear",
  "pricing_model": "unclear",
  "price": {
    "observed": true,
    "billing": "free",
    "source_kind": "vendor",
    "currency": "USD",
    "lowest_monthly_usd": null,
    "monthly_usd": null,
    "headline": "Free",
    "commercial": {
      "currency": "USD",
      "lines": [
        {
          "name": "Free",
          "price": "Free",
          "kind": "free",
          "billed": "monthly"
        }
      ]
    },
    "summary": "Free. The Postbox Services MCP server is explicitly offered free with no account or API key, subject to fair-use limits.",
    "confidence": "medium",
    "source_url": "https://postboxservices.com/mcp/",
    "checked_at": "2026-10-28T02:48:22.502Z",
    "amount": null,
    "display": null,
    "plans": [
      {
        "name": "Free",
        "price": "Free",
        "period": null,
        "persona": "free",
        "highlights": [
          "No account required",
          "No API key required",
          "Fair-use limits",
          "Live email deliverability and security checks"
        ],
        "promo_note": null,
        "price_promo": null,
        "price_annual": null
      }
    ],
    "source": "render+llm"
  },
  "trust_or_rating_signal": [],
  "evidence_quality": "medium",
  "entity_type": "infrastructure",
  "regulated_data_suitability": "unclear",
  "evidence_urls": [
    "https://postboxservices.com/mcp/"
  ],
  "last_checked": "2026-10-28",
  "profile_checked": "2026-09-27",
  "price_checked": "2026-10-28",
  "how_to_connect": {
    "website": "https://postboxservices.com/mcp/",
    "docs": null,
    "mcp": {
      "endpoint": "https://mcp.postboxservices.com/mcp",
      "transport": "http",
      "config_snippet": "{\n  \"mcpServers\": {\n    \"postbox_tools\": {\n      \"url\": \"https://mcp.postboxservices.com/mcp\"\n    }\n  }\n}"
    },
    "a2a": null,
    "api": null,
    "protocols": [
      "MCP"
    ],
    "install": null,
    "repository": null
  },
  "deployment": {
    "model": "both",
    "both_offered": false,
    "hosted_endpoint": "https://mcp.postboxservices.com/mcp",
    "install": null,
    "note": "Offered both ways: a vendor-hosted endpoint AND a self-run install are documented.",
    "evidence": {
      "sources": [
        "page_text:hosted",
        "page_text:self_run_wording"
      ],
      "excerpt": "TP analysis - instead of guessing from training data. Free, no account, no API key. https://mcp.postboxservices.com/mcp Copy URL “Is acme.com on any email blacklists?” “",
      "url": "https://postboxservices.com/mcp/",
      "observed_day": "2026-10-28",
      "age_days": 1,
      "hosted_evidence": "vendor endpoint URL on the page",
      "rule": "deploy-v1"
    }
  },
  "licence": {
    "name": null,
    "note": "No named licence found in the retained page text or source attributes. A public repository alone does not establish an open-source licence.",
    "evidence": null
  },
  "evidence_checks": {
    "price": {
      "source_url": "https://postboxservices.com/mcp/",
      "last_observed_day": "2026-10-28",
      "age_days": 1,
      "verified_day": "2026-10-28",
      "note": "verified = the page-text gate ran for that scan day (day-before/day-of text check)"
    },
    "agent_card": {
      "status": "unknown",
      "note": "no Agent Card URL recorded for this listing"
    },
    "endpoint": {
      "status": "unknown",
      "note": "endpoint not yet checked"
    }
  },
  "product_group": null,
  "liveness": {
    "probed": true,
    "alive": true,
    "endpoint_kind": "site",
    "latency_ms": 764,
    "uptime_7d": 1,
    "checked_at": "2026-10-28T02:42:42.644Z",
    "consecutive_failures": 0,
    "status": "alive"
  },
  "price_extras": {
    "free_tier": null,
    "unit_cost": null
  },
  "reported_success": null,
  "feedback": "If you actually use this provider, call report_outcome with the result. Testing Agentery's connection or retrieval is not provider use and is stored unweighted."
}