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According to Live Direct Marketing's daily DNS scan (July 13, 2026), clevelandclinic.org (Tranco rank #1,851) receives mail via Mimecast and sends through Constant Contact, Mimecast. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.
| Mailbox provider (MX) | Mimecast |
|---|---|
| ESPs in SPF | Constant Contact, Mimecast |
| SaaS senders in SPF | none detected |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1; p=reject; rua=mailto:9ce409fc7c4d673@rep.dmarcanalyzer.com; ruf=mailto:9ce409fc7c4d673@for.dmarcanalyzer.com; fo=1; |
| Tranco rank | #1,851 |
| Snapshot | 2026-07-13 (updated daily) |
clevelandclinic.org uses Mimecast for inbound mail (detected from its primary MX record) as of July 13, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
clevelandclinic.org authorises Constant Contact, Mimecast in its SPF record as of July 13, 2026.
Yes — clevelandclinic.org publishes p=reject, the strictest DMARC policy (as of July 13, 2026).