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According to Live Direct Marketing's daily DNS scan (July 13, 2026), postscript.io (Tranco rank #10,611) receives mail via Google Workspace and sends through HubSpot, Sendergen, Mailgun. 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 | HubSpot, Sendergen, Mailgun, Zendesk |
| SaaS senders in SPF | none detected |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1; p=reject; pct=100; rua=mailto:re+dhww1zkak2m@dmarc.postmarkapp.com; adkim=s; aspf=r; |
| Tranco rank | #10,611 |
| Snapshot | 2026-07-13 (updated daily) |
postscript.io 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.
postscript.io authorises HubSpot, Sendergen, Mailgun, Zendesk in its SPF record as of July 13, 2026.
Yes — postscript.io publishes p=reject, the strictest DMARC policy (as of July 13, 2026).