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According to Live Direct Marketing's daily DNS scan (July 13, 2026), medium.com (Tranco rank #179) receives mail via Google Workspace and sends through SendGrid (Twilio), Zendesk, Amazon SES. 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 | SendGrid (Twilio), Zendesk, Amazon SES |
| SaaS senders in SPF | KnowBe4, Tipalti |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1; p=reject; sp=reject; pct=100;fo=1; ri=3600; rua=mailto:dmarc.rua@medium.com; ruf=mailto:dmarc.rua@medium.com,mailto:ruf@dmarc.medium.com |
| Tranco rank | #179 |
| Snapshot | 2026-07-13 (updated daily) |
medium.com 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.
medium.com authorises SendGrid (Twilio), Zendesk, Amazon SES in its SPF record as of July 13, 2026.
Yes — medium.com publishes p=reject, the strictest DMARC policy (as of July 13, 2026).