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SPF, DKIM and DMARC Checker for Email Authentication
Free email authentication scanner, no key or signup. Checks SPF, DKIM, DMARC, MX, DNSSEC, blacklists and runs a live SMTP probe on any domain.
https://scan.mx/Opens ChatGPT on the web or desktop and asks it to use the WebMCP tools available here.
Connect straight to this server’s public endpoint.
https://api.scan.mx/mcpWe add this server to your workspace, then open Studio — saved access, one connection to many servers, with a history of what ran.
Last probed Sep 18, 2026 · api.scan.mx
6tools discovered
Full email deliverability check
Run the full email and DNS deliverability check for a domain: MX, SPF, DKIM, DMARC, DNS health, provider detection, and…
Check MX records
Check the MX records of a domain: presence, hostnames, resolution, null-MX, and common misconfigurations.
Check SPF
Check the domain SPF policy: presence, syntax, the all qualifier, and the 10-lookup limit.
Check DMARC
Check the domain DMARC policy at _dmarc: presence, policy strength (none/quarantine/reject), and reporting.
Check blacklists
Check whether the domain and its mail server IPs are listed on the Spamhaus (ZEN, DBL, ZRD, AuthBL), SpamCop, GBUdb and…
Check DKIM
Check DKIM signing keys for a domain.
Get your MCP into directories
A working endpoint is step one. Directory coverage is the coordinated launch across ChatGPT, Claude, Cursor, the MCP Registry, and community indexes.
Directory coverage for brandsFree email authentication scanner, no key or signup. Checks SPF, DKIM, DMARC, MX, DNSSEC, blacklists and runs a live SMTP probe on any domain.
Use the MCP endpoint listed on this page in your MCP client configuration. One-click install pills support Claude, Cursor, VS Code, and other hosts. Copy the remote MCP URL if your client needs a manual entry.
Request removal if you do not want scan.mx listed here, or claim the listing if you want to manage it on MCPBundles.
This server appears in the MCPBundles directory. Verify you operate it to take over the listing — name, description, logo, contact email, and skill content. We email a 6-digit code to a maintainer address your server publishes in /.well-known/security.txt or /.well-known/mcpbundles.json. Free, takes about a minute.
Other MCP servers in this category from the directory index
MCPBundles probed 6 tools on the live server. The tool list on this page reflects what was discovered at the last refresh — connect your client to see the full set available to your session.
No provider sign-in was required during MCPBundles' probe. Your client may still need MCPBundles credentials depending on how you connect.
Request removal from the MCPBundles directory. This does not shut down or change your MCP server — we stop showing it on MCPBundles.
MCPBundles is an independent platform built on the open Model Context Protocol standard. Not affiliated with Anthropic PBC or Claude.
Bundle for MCP provider DC Hub Intelligence
91 tools