scan.mx Email Diagnostics
mx.scan/diagnostics · v1.0.0 · MCP 2025-11-25
Check email deliverability for a domain: MX, SPF, DKIM, DMARC, blacklists. Graded, no key.
Reachability
reachable
checked 2026-07-14 03:29 UTC
Registry status active
Tools pinned 6
08581c217341
Tools last changed
unchanged since first capture 2026-07-14
Provenance
Registry namespace mx.scan
(domain verified by the official registry)
Website
https://scan.mx
Remote endpoints
https://api.scan.mx/mcp (streamable-http)
Observed changes
| When (UTC) | Event | Detail |
|---|---|---|
| 2026-07-14 03:29 | first capture | 6 tools pinned |
Pinned tool definitions (6)
| Tool | Description |
|---|---|
| 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), a 0 to 100 score, and every individual check with its RFC reference.... |
| 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. |
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