deliverability-doctor

io.github.Integrity-Os/deliverability-doctorVersion 1.0.2

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

Status

Responds143 msNov 14, 2026, 14:38 UTCAnswered our handshake without sign-in.

Registry data may be out of date

We could not refresh it, so this page shows the last copy.

Last checked: Nov 14, 2026, 14:38 UTC
Latency: 143 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://deliverability-doctor.deliverability-doctor.workers.dev/mcpResponds143 msNov 14, 2026, 14:38 UTC

No sign-in

Claude Code

claude mcp add --transport http deliverability-doctor https://deliverability-doctor.deliverability-doctor.workers.dev/mcp

Claude Desktop and claude.ai

1
2
3

Settings > Connectors > Add custom connector
Name: deliverability-doctor
Remote MCP server URL: https://deliverability-doctor.deliverability-doctor.workers.dev/mcp

Cursor

{
  "mcpServers": {
    "deliverability-doctor": {
      "url": "https://deliverability-doctor.deliverability-doctor.workers.dev/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"deliverability-doctor","type":"http","url":"https://deliverability-doctor.deliverability-doctor.workers.dev/mcp"}'

Built your own server? run.zero hosts MCP servers on European infrastructure.

Host your own MCP server on run.zero

Tools

2 tools

Tools of deliverability-doctor
	Description		Read-only	Idempotent	Open world
`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. Returns a graded report with concrete fixes. Accepts a bare domain, a URL, or an email address. Nothing is sent to the domain.	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. Returns a graded report with concrete fixes. Accepts a bare domain, a URL, or an email address. Nothing is sent to the domain.	Not declared	Not declared	Not declared	Not declared
`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.	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.	Not declared	Not declared	Not declared	Not declared

Details

Registry status: Active
Published: Aug 25, 2026
Updated: Aug 25, 2026
Website: Not given
Repository: https://github.com/Integrity-Os/deliverability-doctor⁠ (opens in a new tab)
Categories (suggested): SecuritySuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

Are you the operator? Claim this listing