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According to Live Direct Marketing's daily DNS scan (July 13, 2026), popsci.com (Tranco rank #4,297) receives mail via Google Workspace and sends through Mailchimp, Sailthru. Its DMARC policy is p=none (monitor only) — like the majority of DMARC publishers (53% don't enforce).
| Mailbox provider (MX) | Google Workspace |
|---|---|
| ESPs in SPF | Mailchimp, Sailthru |
| SaaS senders in SPF | none detected |
| DMARC policy | p=none |
| DMARC record | v=DMARC1;p=none;rua=mailto:dmarc_agg@vali.email,mailto:088836b424@rua.easydmarc.us; |
| Tranco rank | #4,297 |
| Snapshot | 2026-07-13 (updated daily) |
popsci.com uses Google Workspace for inbound mail (detected from its primary MX record) as of July 13, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
popsci.com authorises Mailchimp, Sailthru in its SPF record as of July 13, 2026.
No — popsci.com publishes p=none, which only monitors and does not block spoofing (as of July 13, 2026).