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According to Live Direct Marketing's daily DNS scan (July 13, 2026), sina.com (Tranco rank #5,492) receives mail via Unknown / Other. Its DMARC policy is p=none (monitor only) — like the majority of DMARC publishers (53% don't enforce).
| Mailbox provider (MX) | Unknown / Other |
|---|---|
| ESPs in SPF | none detected |
| SaaS senders in SPF | none detected |
| DMARC policy | p=none |
| DMARC record | v=DMARC1; p=none; |
| Tranco rank | #5,492 |
| Snapshot | 2026-07-13 (updated daily) |
sina.com uses Unknown / Other for inbound mail (detected from its primary MX record) as of July 13, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
No — sina.com publishes p=none, which only monitors and does not block spoofing (as of July 13, 2026).