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According to Live Direct Marketing's daily DNS scan (July 13, 2026), fws.gov (Tranco rank #6,459) receives mail via Microsoft 365 and sends through SendGrid (Twilio), Amazon SES. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.
| Mailbox provider (MX) | Microsoft 365 |
|---|---|
| ESPs in SPF | SendGrid (Twilio), Amazon SES |
| SaaS senders in SPF | none detected |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1;p=reject;rua=mailto:dmarc_reports@doi.gov,mailto:reports@dmarc.cyber.dhs.gov,mailto:dmarc_agg@valigov.email |
| Tranco rank | #6,459 |
| Snapshot | 2026-07-13 (updated daily) |
fws.gov uses Microsoft 365 for inbound mail (detected from its primary MX record) as of July 13, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
fws.gov authorises SendGrid (Twilio), Amazon SES in its SPF record as of July 13, 2026.
Yes — fws.gov publishes p=reject, the strictest DMARC policy (as of July 13, 2026).