Is irs.gov a valid email domain?
irs.gov can receive email. It publishes 3 mail servers, and the first choice is emgc.irs.gov.
It is not a free provider and is not on our disposable list, so addresses here usually belong to a company, school or other organisation.
SPF is published and ends with -all. DMARC is set to reject.
Check an email address at irs.gov
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MX records
| Priority | Mail server | Resolves to |
|---|---|---|
| 10 | emgc.irs.gov | 152.216.11.139, 2610:30:2000:25::167 |
| 10 | emge.irs.gov | 152.216.7.167, 2610:30:4000:25::167 |
| 20 | emgw.irs.gov | 152.216.13.169, 2610:30:0:13::169 |
SPF
Record published
v=spf1 ip4:152.216.0.0/20 ip6:2610:30::/32 -all
DMARC
Policy: reject
v=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
Disposable?
No, not on our disposable list.
Free provider?
No, not a known free provider.
What this means for your email list
What this means for addresses at this domain
Mail routing for irs.gov is healthy, so the domain is not the risk. The risk is the mailbox: outdated contacts, shared inboxes and catch-all servers. A mailbox-level check tells you which addresses are safe to send to.
Sender authentication
irs.gov has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as irs.gov must have SPF and DKIM set up correctly.
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Sign up to get a report summary →Frequently asked questions
- Is irs.gov a valid email domain?
- Yes. irs.gov publishes 3 MX records and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is irs.gov a disposable email domain?
- No. irs.gov is not on our disposable list. The list is updated regularly, and new throwaway domains appear all the time.
- What are the MX records for irs.gov?
- emgc.irs.gov (priority 10); emge.irs.gov (priority 10); emgw.irs.gov (priority 20).
- Does irs.gov have SPF and DMARC?
- SPF: yes, ending -all. DMARC: yes, policy reject.