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Email infrastructure of irs.gov

According to Live Direct Marketing's daily DNS scan (July 12, 2026), irs.gov (Tranco rank #820) receives mail via Self-Hosted. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.

Mailbox provider (MX)Self-Hosted
ESPs in SPFnone detected
SaaS senders in SPFnone detected
DMARC policyp=reject
DMARC recordv=DMARC1; p=reject; rua=mailto:dmarc-agg-feed@ofdp.irs.gov,mailto:reports@dmarc.cyber.dhs.gov; ruf=mailto:dmarc-for-feed@ofdp.irs.gov; fo=1
Tranco rank#820
Snapshot2026-07-12 (updated daily)

Frequently asked questions

What email provider does irs.gov use?

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

Does irs.gov enforce DMARC?

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