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According to Live Direct Marketing's daily DNS scan (July 12, 2026), coindesk.com (Tranco rank #4,001) receives mail via Proofpoint and sends through Sailthru, Amazon SES, HubSpot. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.
| Mailbox provider (MX) | Proofpoint |
|---|---|
| ESPs in SPF | Sailthru, Amazon SES, HubSpot, Zendesk |
| SaaS senders in SPF | Atlassian (Jira/Confluence) |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1; p=reject; rua=mailto:f0bbb22651ce4315abc168b7e1ad2009@dmarc-reports.cloudflare.net,mailto:pm@coindesk.com; ruf=mailto:pm@coindesk.com; pct=100; adkim=r; aspf=r; rf=afrf; ri=21600; sp=reject |
| Tranco rank | #4,001 |
| Snapshot | 2026-07-12 (updated daily) |
coindesk.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.
coindesk.com authorises Sailthru, Amazon SES, HubSpot, Zendesk in its SPF record as of July 12, 2026.
Yes — coindesk.com publishes p=reject, the strictest DMARC policy (as of July 12, 2026).