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According to Live Direct Marketing's daily DNS scan (July 13, 2026), anthropic.com (Tranco rank #933) receives mail via Google Workspace. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.
| Mailbox provider (MX) | Google Workspace |
|---|---|
| ESPs in SPF | none detected |
| SaaS senders in SPF | none detected |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1; p=reject; sp=reject; rua=mailto:f0cef134490d4d43b9c134fc3c2a3481@dmarc-reports.cloudflare.net,mailto:dmarc-reports@anthropic.com; ruf=mailto:dmarc-reports@anthropic.com; fo=1 |
| Tranco rank | #933 |
| Snapshot | 2026-07-13 (updated daily) |
anthropic.com uses Google Workspace for inbound mail (detected from its primary MX record) as of July 13, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
Yes — anthropic.com publishes p=reject, the strictest DMARC policy (as of July 13, 2026).