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According to Live Direct Marketing's daily DNS scan (July 12, 2026), cancer.org (Tranco rank #3,126) receives mail via Cisco IronPort and sends through Blackbaud Luminate (Convio), Blackbaud. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.
| Mailbox provider (MX) | Cisco IronPort |
|---|---|
| ESPs in SPF | Blackbaud Luminate (Convio), Blackbaud |
| SaaS senders in SPF | none detected |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1; p=reject; sp=reject; pct=100; adkim=r; aspf=r; rua=mailto:dmarc_agg@vali.email; ruf=mailto:dmarc_failure@cancer.org |
| Tranco rank | #3,126 |
| Snapshot | 2026-07-12 (updated daily) |
cancer.org uses Cisco IronPort for inbound mail (detected from its primary MX record) as of July 12, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
cancer.org authorises Blackbaud Luminate (Convio), Blackbaud in its SPF record as of July 12, 2026.
Yes — cancer.org publishes p=reject, the strictest DMARC policy (as of July 12, 2026).