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Email infrastructure of upstart.com

According to Live Direct Marketing's daily DNS scan (July 13, 2026), upstart.com (Tranco rank #8,322) receives mail via Proofpoint and sends through Proofpoint, Salesforce, SendGrid (Twilio). Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.

Mailbox provider (MX)Proofpoint
ESPs in SPFProofpoint, Salesforce, SendGrid (Twilio)
SaaS senders in SPFTipalti, Greenhouse
DMARC policyp=reject
DMARC recordv=DMARC1; p=reject; rua=mailto:dmarc_agg@dmarc.250ok.net,mailto:dmarc_agg@vali.email; ruf=mailto:dmarc_fr@dmarc.250ok.net; fo=1; pct=100; rf=afrf; sp=quarantine
Tranco rank#8,322
Snapshot2026-07-13 (updated daily)

Frequently asked questions

What email provider does upstart.com use?

upstart.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.

What ESP does upstart.com use?

upstart.com authorises Proofpoint, Salesforce, SendGrid (Twilio) in its SPF record as of July 13, 2026.

Does upstart.com enforce DMARC?

Yes — upstart.com publishes p=reject, the strictest DMARC policy (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 upstart.com at Gmail, Outlook, Yandex and Mail.ru.
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