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According to Live Direct Marketing's daily DNS scan (July 12, 2026), pb.com (Tranco rank #3,887) receives mail via Proofpoint. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.
| Mailbox provider (MX) | Proofpoint |
|---|---|
| ESPs in SPF | none detected |
| SaaS senders in SPF | Atlassian (Jira/Confluence), Statuspage (Atlassian) |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1;""p=reject;""fo=1;""rua=mailto:dmarc_rua@emaildefense.proofpoint.com;""ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com; |
| Tranco rank | #3,887 |
| Snapshot | 2026-07-12 (updated daily) |
pb.com uses Proofpoint for inbound mail (detected from its primary MX record) as of July 12, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
Yes — pb.com publishes p=reject, the strictest DMARC policy (as of July 12, 2026).