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90
MCP live MCP 2025-11-25 streamable-http

io.github.integrity-os/deliverability-doctor

io.github.integrity-os/deliverability-doctor

Check if a domain can be email-spoofed: SPF, DMARC, DKIM, MX graded from public DNS. Authless.

Watch this dependency Share evidence report
Uptime
100.0%
5 direct probes · 30d
Response
402ms
last probe
Tools
2
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://deliverability-doctor.deliverability-doctor.workers.dev/mcp
Score: 90/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
2 tools, 0 resources, 0 prompts returned.
partial 3 or more catalogue items 0/10
2 items in total; 3 or more earns these points.
How to earn +10 points
Expose at least three tools, resources or prompts
Split a catch-all tool into focused ones, or publish your docs and templates as resources and prompts.
Docs →
pass Describes itself 10/10
94 characters; more than 30 earns these points.

Tools · 2

check_email_security

Checks whether a domain can be email-spoofed, using public DNS only. Verifies SPF (including the RFC 7208 multiple-record permerror), DMARC policy and reporting, MX, and DKIM at common selectors. Retu…

compare_email_security

Runs the email-security check on 2–5 domains and returns a comparison table with per-domain grades. Useful for checking your domain against competitors.

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://deliverability-doctor.deliverability-doctor.workers.dev/mcp

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "io.github.integrity-os/deliverability-doctor": {
      "url": "https://deliverability-doctor.deliverability-doctor.workers.dev/mcp",
      "transport": "streamable-http"
    }
  }
}