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Bulk DMARC Record Lookup

dmarc-lookup.underscoredone.com · x402

Give this tool a list of domain names and it will instantly check each one's DMARC email security record. DMARC is a standard that tells email providers how to handle fake or spoofed emails pretending to come from your domain. For each domain you submit, you get back whether a valid record exists, what the policy is (none, quarantine, or reject), whether reporting addresses are set up, and the full raw record text. Perfect for auditing many domains at once without any setup.
Name and description as published by x402 Bazaar

Live

Last successful check: 25 Oct 2026, 18:32 UTC.

answered, last 24 hours
100%
answered, last 30 days
100%
How addrbook checks →

Connect

https://dmarc-lookup.underscoredone.com/dmarc-lookup

x402: an unpaid request gets a 402 with the price and pay-to wallet. addrbook never pays.

Who's behind it

Listed by
  • x402 Bazaarlast seen UTC
Wallets named
  • 0xe9740820225b3918b4ddd1292c7ca4ca0e2c2f08named by x402 Bazaar
Listed since

Payments

different wallets paid it, last 30 days
5
paid calls, last 30 days
7
last paid call (UTC)

As the x402 Bazaar reports, from payments Coinbase's facilitator settled. Read . addrbook has not counted these payments itself.

Its x402 endpoints have not listed a payment option addrbook could read yet.

Checks by endpoint

HostProtocolStateLast checked (UTC)Last answered (UTC)24 hours30 daysTools
dmarc-lookup.underscoredone.comx402Live100%100%—

Also listed as

Other entries that share an endpoint with this one.