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According to Live Direct Marketing's daily DNS scan (July 13, 2026), letsencrypt.org (Tranco rank #1,257) receives mail via Google Workspace and sends through Zendesk. 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 | Zendesk |
| SaaS senders in SPF | Sage Intacct |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1; p=reject; rua=mailto:re+2ea7a1650465@inbound.dmarcdigests.com; fo=1 |
| Tranco rank | #1,257 |
| Snapshot | 2026-07-13 (updated daily) |
letsencrypt.org 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.
letsencrypt.org authorises Zendesk in its SPF record as of July 13, 2026.
Yes — letsencrypt.org publishes p=reject, the strictest DMARC policy (as of July 13, 2026).