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According to Live Direct Marketing's daily DNS scan (July 13, 2026), autotrader.co.uk (Tranco rank #1,319) receives mail via Microsoft 365 and sends through HubSpot, SendGrid (Twilio), Mandrill. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.
| Mailbox provider (MX) | Microsoft 365 |
|---|---|
| ESPs in SPF | HubSpot, SendGrid (Twilio), Mandrill, Zendesk |
| SaaS senders in SPF | Atlassian (Jira/Confluence) |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_agg@dmarc.everest.email; ruf=mailto:dmarc_fr@dmarc.everest.email |
| Tranco rank | #1,319 |
| Snapshot | 2026-07-13 (updated daily) |
autotrader.co.uk uses Microsoft 365 for inbound mail (detected from its primary MX record) as of July 13, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
autotrader.co.uk authorises HubSpot, SendGrid (Twilio), Mandrill, Zendesk in its SPF record as of July 13, 2026.
Yes — autotrader.co.uk publishes p=reject, the strictest DMARC policy (as of July 13, 2026).