scan.mx Email Diagnostics

Last 30 days

Uptime

100%

Response time

141 ms typical, 141 ms slowest 5%

Last check

4 h ago

Next check

in 2 h

How to call it

Add it to any MCP client that supports remote servers.

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

6 tools

• check_domain

  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

• check_mx

  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_blacklist

  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

  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.

Security scan

• No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks