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Email infrastructure of ou.edu

According to Live Direct Marketing's daily DNS scan (July 13, 2026), ou.edu (Tranco rank #8,809) receives mail via Proofpoint and sends through Mailchimp, SendGrid (Twilio), Zendesk. Its DMARC policy is p=quarantine — one of the minority (47%) of DMARC publishers that actually enforce.

Mailbox provider (MX)Proofpoint
ESPs in SPFMailchimp, SendGrid (Twilio), Zendesk, TouchNet (FIS)
SaaS senders in SPFPardot (Salesforce), Qualtrics
DMARC policyp=quarantine
DMARC recordv=DMARC1;p=quarantine;fo=1;rua=mailto:dmarc_rua@emaildefense.proofpoint.com;ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
Tranco rank#8,809
Snapshot2026-07-13 (updated daily)

Frequently asked questions

What email provider does ou.edu use?

ou.edu 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.

What ESP does ou.edu use?

ou.edu authorises Mailchimp, SendGrid (Twilio), Zendesk, TouchNet (FIS) in its SPF record as of July 13, 2026.

Does ou.edu enforce DMARC?

Partially — ou.edu publishes p=quarantine (as of July 13, 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 ou.edu at Gmail, Outlook, Yandex and Mail.ru.
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