Auth Posture — Email Deliverability & Spoofability Audit MCP Server

by rowb-auth-posture Your server? Claim it

answering

Auth Posture — Email Deliverability & Spoofability Audit is answering right now. Last checked 11 min ago. It exposes 1 tools.

One-call domain audit: MX receiving, SPF/DMARC/DKIM spoofing protection, disposable-address risk.

Uptime history 7 hours of history · worst hour 25%

7 hours agonow

80.0%

Uptime 24h

20 of 25 checks

Tools

read from the server

652 ms

Response time

average over 24h

open, no key

Access

streamable-http

Auth Posture — Email Deliverability & Spoofability Audit does not always answer

Over the last week it answered 80.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add audit --transport http https://auth-posture.rowb.app/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "audit": {
      "url": "https://auth-posture.rowb.app/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.audit]
url = "https://auth-posture.rowb.app/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "audit": {
      "url": "https://auth-posture.rowb.app/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "audit": {
      "url": "https://auth-posture.rowb.app/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

audit

audit_domain

Audit an email domain in one call: can it receive mail (MX), can it be spoofed (SPF/DMARC/DKIM posture), disposable check. Returns {can_receive, can_be_spoofed, score, reasons, checks}.

Endpoints

URL	Transport	State	Latency	Checked
https://auth-posture.rowb.app/mcp	streamable-http	answering	907 ms	11 min ago

Alternatives to Auth Posture — Email Deliverability & Spoofability Audit

same job, measured the same way

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Email Verifier

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Verify email addresses in bulk: syntax, domain, MX, disposable and role addresses, SPF and DMARC

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MAILTYPE — Email Domain Capability Intelligence

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Email-domain intelligence: MX capability, provider, disposable status, SPF, DMARC, and MTA-STS.

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Mail7 Email Validation

by mail7

Verify email addresses, clean lists, and audit a domain SPF, DKIM, DMARC and MX setup.

34 installs/wk local only

scan.mx Email Diagnostics

by scan

Check email deliverability for a domain: MX, SPF, DKIM, DMARC, blacklists. Graded, no key.

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Checkmails — Email Verification

by checkmails

Verify email deliverability by SMTP. Catch-all/disposable/role detection. EU-hosted, GDPR-ready.

answering

Email Deliverability

by inboxguard

Scan and fix a domain's email deliverability (SPF, DKIM, DMARC, MTA-STS, BIMI, DNS blocklists).

28 tools answering

Auth Posture — Email Deliverability & Spoofability Audit — questions

Answers built from our own checks of this server.

What can Auth Posture — Email Deliverability & Spoofability Audit do?

It exposes 1 tools, read directly from the server on our last check. Among them: audit_domain. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Auth Posture — Email Deliverability & Spoofability Audit working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 20 of 25 checks got a reply (80.0%), average response time 652 ms. The bar chart above shows every period we have measured.

How do I connect Auth Posture — Email Deliverability & Spoofability Audit?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Auth Posture — Email Deliverability & Spoofability Audit need an API key?

No. Auth Posture — Email Deliverability & Spoofability Audit completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Auth Posture — Email Deliverability & Spoofability Audit?

It answers our handshake in 652 ms on average, which is faster than 20% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.