MCP server

scan.mx Email Diagnostics Official

mx.scan/diagnostics

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

Email deliverability check: MX, SPF, DKIM, DMARC, blacklists, MTA-STS, DNSSEC, BIMI. Graded, no key.

Working at last checkVerified publisher: scan.mxAbout 1,290 tokens per request once connected9 tools

Website

https://api.scan.mx/mcp

At a glance

Type: MCP server
Publisher: scan.mx (verified by the MCP Registry)
Status: Working at last check
Tools: 9
Token cost: About 1,290 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 25 Oct 2026, 20:29 UTC

Connect it to your agent

Add to Cursor Add to VS Code VS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http diagnostics https://api.scan.mx/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.diagnostics]
url = "https://api.scan.mx/mcp"

Gemini CLI

{"mcpServers":{"diagnostics":{"httpUrl":"https://api.scan.mx/mcp"}}}

Cursor

{"mcpServers":{"diagnostics":{"url":"https://api.scan.mx/mcp"}}}

VS Code

{"servers":{"diagnostics":{"type":"http","url":"https://api.scan.mx/mcp"}}}

Antigravity

agy mcp add diagnostics https://api.scan.mx/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"diagnostics","server_url":"https://api.scan.mx/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"diagnostics","server_url":"https://api.scan.mx/mcp"}

Tools

check_bimi ~120 tokens
Check the domain BIMI record at default._bimi: the SVG logo URL, the VMC/CMC certificate, and the DMARC enforcement BIMI needs.
check_blacklist ~124 tokens
Check whether the domain and its mail server IPs are listed on the Spamhaus (ZEN, DBL, ZRD, AuthBL), SpamCop, GBUdb and PSBL blocklists.
check_dkim ~176 tokens
Check DKIM signing keys for a domain. Without a selector, common provider selectors are probed. Pass an explicit selector to look up that exact key at selector._domainkey.
check_dmarc ~114 tokens
Check the domain DMARC policy at _dmarc: presence, policy strength (none/quarantine/reject), and reporting.
check_dnssec ~116 tokens
Check DNSSEC validation and DNS health: delegation, nameserver count, SOA, and reverse DNS of the mail servers.
check_domain ~297 tokens
Run the full email and DNS deliverability check for a domain: MX, SPF, DKIM, DMARC, DNS health, provider detection, and blacklists. Returns a letter grade (A+ to F, where specific weaknesses cap the grade), a 0 to 100 score, and every individual check with its RFC reference. Set include_smtp to also
check_mta_sts ~121 tokens
Check the domain MTA-STS policy (_mta-sts TXT and the HTTPS policy file, mode and MX coverage) and its TLS-RPT reporting record.
check_mx ~113 tokens
Check the MX records of a domain: presence, hostnames, resolution, null-MX, and common misconfigurations.
check_spf ~109 tokens
Check the domain SPF policy: presence, syntax, the all qualifier, and the 10-lookup limit.

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