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According to Live Direct Marketing's daily DNS scan (July 12, 2026), nature.com (Tranco rank #312) receives mail via Proofpoint and sends through Mandrill, Salesforce, Flowmailer. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.
| Mailbox provider (MX) | Proofpoint |
|---|---|
| ESPs in SPF | Mandrill, Salesforce, Flowmailer |
| SaaS senders in SPF | Echobox |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1; p=reject; pct=100; rua=mailto:re+vcgy2jslus0@dmarc.postmarkapp.com; sp=none; aspf=r; |
| Tranco rank | #312 |
| Snapshot | 2026-07-12 (updated daily) |
nature.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.
nature.com authorises Mandrill, Salesforce, Flowmailer in its SPF record as of July 12, 2026.
Yes — nature.com publishes p=reject, the strictest DMARC policy (as of July 12, 2026).