MX Verdict
mcp remote · streamable-http · v1.0.0 · source: crawl
https://mxverdict.com/mcp
Free, read-only email and DNS checks: SPF, DKIM, DMARC, MX, DNS records, blocklists, domain health.
Works
100
Verified Oct 31, 2026 · p50 955 ms · p95 1260 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'mxverdict' |
| tools_listed | 15 | pass | 7 tools |
| schema_complete | 15 | pass | 7 of 7 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 955 ms |
| latency_p95 | 5 | pass | p95 1260 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (7)
| Name | Description | Schema |
|---|---|---|
check_email_domain | Check everything about a domain's email setup in one call: SPF, DMARC, MX, DKIM on common selectors, domain blocklists, MTA-STS, TLS-RPT and BIMI. Use it for a general question such as "is email set u | typed |
check_spf | Check a domain's SPF record: whether it exists and is valid, how many of the 10 allowed DNS lookups it uses, and how its all mechanism treats mail from servers that are not listed. | typed |
check_dkim | Check a domain's DKIM public keys in DNS. With a selector (the s= tag of a DKIM-Signature header), checks that selector's key; without one, probes common selector names. Finding no key on common names | typed |
check_dmarc | Check a domain's DMARC record: whether it exists and is valid, its policy (none, quarantine or reject), alignment, and where reports are sent. | typed |
lookup_mx | Look up a domain's MX records (its incoming mail servers), their IP addresses and reverse DNS. DNS only: it does not connect to the mail servers. | typed |
dns_lookup | Look up DNS records of a name. Type ALL (the default) queries A, AAAA, CNAME, MX, NS, TXT, SOA and CAA; any single type can be asked for. An IP address gives its reverse DNS (PTR) lookup. | typed |
check_blacklist | Check whether an IP address or a domain is listed on public DNS blocklists (DNSBLs). A domain is checked on domain blocklists only; to check a mail server, give its IP address. | typed |
Badge
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[](https://app.agent-xm.com/a/com-mxverdict-mxverdict)
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