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According to Live Direct Marketing's daily DNS scan (July 13, 2026), arcpublishing.com (Tranco rank #6,286) receives mail via Proofpoint and sends through Proofpoint, Zendesk. Its DMARC policy is p=none (monitor only) — like the majority of DMARC publishers (53% don't enforce).
| Mailbox provider (MX) | Proofpoint |
|---|---|
| ESPs in SPF | Proofpoint, Zendesk |
| SaaS senders in SPF | Recurly, Docebo (LMS), Pardot (Salesforce) |
| DMARC policy | p=none |
| DMARC record | v=DMARC1; p=none; fo=1; rua=mailto:arcpub-rua@arcpublishing.com; ruf=mailto:arcpub-ruf@arcpublishing.com |
| Tranco rank | #6,286 |
| Snapshot | 2026-07-13 (updated daily) |
arcpublishing.com uses Proofpoint for inbound mail (detected from its primary MX record) as of July 13, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
arcpublishing.com authorises Proofpoint, Zendesk in its SPF record as of July 13, 2026.
No — arcpublishing.com publishes p=none, which only monitors and does not block spoofing (as of July 13, 2026).