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According to Live Direct Marketing's daily DNS scan (July 12, 2026), inc.com (Tranco rank #2,160) receives mail via Proofpoint Essentials and sends through Zendesk, Amazon SES, Mandrill. Its DMARC policy is p=quarantine — one of the minority (47%) of DMARC publishers that actually enforce.
| Mailbox provider (MX) | Proofpoint Essentials |
|---|---|
| ESPs in SPF | Zendesk, Amazon SES, Mandrill |
| SaaS senders in SPF | none detected |
| DMARC policy | p=quarantine |
| DMARC record | v=DMARC1; p=quarantine; rua=mailto:dmarc@inc.com; ruf=mailto:dmarc@inc.com; aspf=s; |
| Tranco rank | #2,160 |
| Snapshot | 2026-07-12 (updated daily) |
inc.com uses Proofpoint Essentials for inbound mail (detected from its primary MX record) as of July 12, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
inc.com authorises Zendesk, Amazon SES, Mandrill in its SPF record as of July 12, 2026.
Partially — inc.com publishes p=quarantine (as of July 12, 2026).