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According to Live Direct Marketing's daily DNS scan (July 13, 2026), tui.co.uk (Tranco rank #6,694) receives mail via Microsoft 365 and sends through Mailjet (Sinch), Salesforce, Qualtrics Mail. Its DMARC policy is p=none (monitor only) — like the majority of DMARC publishers (53% don't enforce).
| Mailbox provider (MX) | Microsoft 365 |
|---|---|
| ESPs in SPF | Mailjet (Sinch), Salesforce, Qualtrics Mail, Amazon SES |
| SaaS senders in SPF | none detected |
| DMARC policy | p=none |
| DMARC record | v=DMARC1; p=none; pct=100; fo=1; ri=3600; rua=mailto:2256e681@inbox.ondmarc.com; ruf=mailto:2256e681@inbox.ondmarc.com; |
| Tranco rank | #6,694 |
| Snapshot | 2026-07-13 (updated daily) |
tui.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.
tui.co.uk authorises Mailjet (Sinch), Salesforce, Qualtrics Mail, Amazon SES in its SPF record as of July 13, 2026.
No — tui.co.uk publishes p=none, which only monitors and does not block spoofing (as of July 13, 2026).