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Email infrastructure of sleepfoundation.org

According to Live Direct Marketing's daily DNS scan (July 12, 2026), sleepfoundation.org (Tranco rank #5,409) receives mail via Google Workspace and sends through Zendesk, SMTP.com. Its DMARC policy is p=quarantine — one of the minority (47%) of DMARC publishers that actually enforce.

Mailbox provider (MX)Google Workspace
ESPs in SPFZendesk, SMTP.com
SaaS senders in SPFnone detected
DMARC policyp=quarantine
DMARC recordv=DMARC1; p=quarantine; pct=100; adkim=r; aspf=r
Tranco rank#5,409
Snapshot2026-07-12 (updated daily)

Frequently asked questions

What email provider does sleepfoundation.org use?

sleepfoundation.org uses Google Workspace for inbound mail (detected from its primary MX record) as of July 12, 2026, per Live Direct Marketing's daily Tranco top-1M scan.

What ESP does sleepfoundation.org use?

sleepfoundation.org authorises Zendesk, SMTP.com in its SPF record as of July 12, 2026.

Does sleepfoundation.org enforce DMARC?

Partially — sleepfoundation.org publishes p=quarantine (as of July 12, 2026).

DNS records say who should deliver your mail — they don't say whether it lands in the inbox. Run a free inbox placement test for sleepfoundation.org at Gmail, Outlook, Yandex and Mail.ru.
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