Email DNS Preflight

Name: Email DNS Preflight
Author: Email DNS Preflight

AgentA2A

Email authentication plus DNS/domain-security posture for agents: SPF/DMARC/DKIM/BIMI, CAA/DNSSEC, RDAP age/expiry, registrar-lock and nameserver-redundancy signals. DNS-level only; no SMTP mailbox-existence or inbox-delivery claim.

by Email DNS Preflighthomepage ↗v1.0.0

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This record is unclaimed

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Observed by Wellknown

Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability58/58 checks ok

when	check	result	http	latency	detail
1 h ago	a2a card	ok	200	10 ms	protocol 1.0 · card: Email DNS Preflight · 4 skills
8 h ago	a2a card	ok	200	88 ms	protocol 1.0 · card: Email DNS Preflight · 4 skills
15 h ago	a2a card	ok	200	35 ms	protocol 1.0 · card: Email DNS Preflight · 4 skills
22 h ago	a2a card	ok	200	21 ms	protocol 1.0 · card: Email DNS Preflight · 4 skills
28 h ago	a2a card	ok	200	24 ms	protocol 1.0 · card: Email DNS Preflight · 4 skills
33 h ago	a2a card	ok	200	70 ms	protocol 1.0 · card: Email DNS Preflight · 4 skills
2 d ago	a2a card	ok	200	64 ms	protocol 1.0 · card: Email DNS Preflight · 4 skills
2 d ago	a2a card	ok	200	49 ms	protocol 1.0 · card: Email DNS Preflight · 4 skills
2 d ago	a2a card	ok	200	9 ms	protocol 1.0 · card: Email DNS Preflight · 4 skills
3 d ago	a2a card	ok	200	50 ms	protocol 1.0 · card: Email DNS Preflight · 4 skills

Declared by sources

What the publisher says

Attributed to the source that supplied each field. Treated as claims, not facts.

No long description beyond the summary.

emailvalidationverificationdnssecuritydomainmxtxtnscnamesoacaaspfdmarcdkimbimirdapdomain-agednssecemail-authenticationmail-securitywhoisdomain-expiryregistrar

Declared skills

Email DNS Preflight — Preflight an email address and its public DNS mail-security posture.
Domain DNS Preflight — Resolve DNS records plus structured CAA issuance policy, SPF/DMARC, parsed common-selector DKIM evidence, MTA-STS/TLS-RPT, BIMI readiness, DNSSEC and RDAP age/expiry, registrar-lock and nameserver-redundancy posture.
Domain Email Security — Focused SPF/DMARC/DKIM/BIMI diagnostics with bounded recursive SPF 10-lookup-limit analysis, parsed DKIM selector evidence, BIMI readiness, CAA issuance posture, compact registrar-lock/expiry context, DNSSEC, transparent risk flags and prioritized deterministic fixes.
Domain Age and RDAP — Privacy-safe WHOIS-successor lookup for domain age, registration/expiry dates, registrar, registry statuses, nameservers and DNSSEC delegation.

kind A2A Agent Card

name A2A Agent Card

summary A2A Agent Card

version A2A Agent Card

description A2A Agent Card

homepageUrl A2A Agent Card

publisherUrl A2A Agent Card

publisherName A2A Agent Card

Provenance

Where this record came from

Every source is kept verbatim. Field changes are logged as events.

A2A Agent Cardhttps://email-dns-preflight-x402.copper-crate.workers.dev/.well-known/agent-card.json

first seen 16 d ago · fetched 2 d agoopen ↗

Field history (7 recent events)

16 d ago · declared · summary → "Email authentication plus DNS/domain-security posture for agents: SPF/DMARC/DKIM/BIMI, CAA/DNSSEC, RDAP age/expiry, reg
16 d ago · declared · description → "Email authentication plus DNS/domain-security posture for agents: SPF/DMARC/DKIM/BIMI, CAA/DNSSEC, RDAP age/expiry, reg
16 d ago · declared · publisherName → "Email DNS Preflight"
16 d ago · declared · publisherUrl → "https://email-dns-preflight-x402.copper-crate.workers.dev"
16 d ago · declared · homepageUrl → "https://email-dns-preflight-x402.copper-crate.workers.dev/skill.md"
16 d ago · declared · version → "1.0.0"
16 d ago · declared · protocols → ["a2a"]

This record is unclaimed

Evidence

What the publisher says

Capabilities

Where this record came from