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According to Live Direct Marketing's daily DNS scan (July 12, 2026), soton.ac.uk (Tranco rank #10,635) receives mail via Microsoft 365 and sends through Mailchimp. 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 | Mailchimp |
| SaaS senders in SPF | none detected |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1; p=reject; sp=reject; pct=100;rua=mailto:2e234624e1c5145@rep.dmarcanalyzer.com; ruf=mailto:2e234624e1c5145@for.dmarcanalyzer.com; fo=1; |
| Tranco rank | #10,635 |
| Snapshot | 2026-07-12 (updated daily) |
soton.ac.uk uses Microsoft 365 for inbound mail (detected from its primary MX record) as of July 12, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
soton.ac.uk authorises Mailchimp in its SPF record as of July 12, 2026.
Yes — soton.ac.uk publishes p=reject, the strictest DMARC policy (as of July 12, 2026).