mcp server
scan.mx Email Diagnostics
Check email deliverability for a domain: MX, SPF, DKIM, DMARC, blacklists. Graded, no key.
Description as published by the maintainer. Source
- version 1.0.0
- active
active — Registry entry last updated 2026-07-09.
What this server can do
6 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.
check_blacklist(domain)- Check whether the domain and its mail server IPs are listed on the Spamhaus (ZEN, DBL, ZRD, AuthBL), SpamCop, GBUdb and PSBL blocklists. Required: domain.
check_dkim(domain, selector)- 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. Required: domain.
check_dmarc(domain)- Check the domain DMARC policy at _dmarc: presence, policy strength (none/quarantine/reject), and reporting. Required: domain.
check_domain(domain, include_smtp)- 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. Set include_smtp to also run a live SMTP probe of the mail servers: the probe is non-blocking, so when smtp_status is "pending" or "running" call this tool again (poll_after_seconds hints how long to wait) until smtp_status is "complete" and the SMTP checks appear in checks. Required: domain.
check_mx(domain)- Check the MX records of a domain: presence, hostnames, resolution, null-MX, and common misconfigurations. Required: domain.
check_spf(domain)- Check the domain SPF policy: presence, syntax, the all qualifier, and the 10-lookup limit. Required: domain.
Last successful function declaration observed on . Source: https://api.scan.mx/mcp. We list what the server declared; we do not call any of these functions.
Endpoint status observed on . Source: https://api.scan.mx/mcp.
Signals
These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.
| Signal | Value | What it measures | Window | Observed | Source |
|---|---|---|---|---|---|
| Latest published version | 1.0.0 | Latest version string the maintainer published to the registry. | as of fetch | Model Context Protocol | |
| Registry record last updated | 2026-07-09 | When the registry record was last updated by its maintainer. | point in time | Model Context Protocol | |
| First listed in the MCP Registry | 2026-07-09 | Date this server was first published to the official MCP Registry. Not a usage or quality measure. | point in time | Model Context Protocol | |
| mcp tools declared | 6 tools | Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. | as of probe | api.scan.mx | |
| mcp endpoint status | ok | The server listed 6 functions when asked. | as of probe | api.scan.mx |
Where to get it
This record as data
Every field on this page, with its source and observation date, is in the catalog JSON. Fetch the whole kind at once instead of parsing this HTML.
GET /api/v1/entries/mcp_server.json