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According to Live Direct Marketing's daily DNS scan (July 13, 2026), usps.com (Tranco rank #796) receives mail via Unknown / Other. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.
| Mailbox provider (MX) | Unknown / Other |
|---|---|
| ESPs in SPF | none detected |
| SaaS senders in SPF | none detected |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1; p=reject; fo=1; rua=mailto:reports@dmarc.cyber.dhs.gov,mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com |
| Tranco rank | #796 |
| Snapshot | 2026-07-13 (updated daily) |
usps.com uses Unknown / Other 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 — usps.com publishes p=reject, the strictest DMARC policy (as of July 13, 2026).