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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 SPF | Proofpoint, Salesforce, SendGrid (Twilio) |
| SaaS senders in SPF | Tipalti, Greenhouse |
| DMARC policy | p=reject |
| DMARC record | v=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 |
| Snapshot | 2026-07-13 (updated daily) |
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.
upstart.com authorises Proofpoint, Salesforce, SendGrid (Twilio) in its SPF record as of July 13, 2026.
Yes — upstart.com publishes p=reject, the strictest DMARC policy (as of July 13, 2026).