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According to Live Direct Marketing's daily DNS scan (July 13, 2026), ionos.de (Tranco rank #2,255) receives mail via 1&1 IONOS. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.
| Mailbox provider (MX) | 1&1 IONOS |
|---|---|
| ESPs in SPF | none detected |
| SaaS senders in SPF | none detected |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:b40ae375@mxtoolbox.dmarc-report.com,mailto:re+rwqsk359bcx@dmarc.postmarkapp.com;ri=86400;aspf=r;adkim=r;fo=1 |
| Tranco rank | #2,255 |
| Snapshot | 2026-07-13 (updated daily) |
ionos.de uses 1&1 IONOS for inbound mail (detected from its primary MX record) as of July 13, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
Yes — ionos.de publishes p=reject, the strictest DMARC policy (as of July 13, 2026).