Yes. You can verify any @Nist.gov address in real time with a direct SMTP handshake that provides 99.7% accuracy. Nist.gov is operated by National Institute of Standards and Technology, runs 1 mail server, enforces 3 of 3 authentication standards, and is currently responding to SMTP.
Every check returns one of three clear outcomes so you know exactly what to do with the address.
The mailbox exists and accepts mail. Send with confidence, the address is deliverable.
The mailbox does not exist, is disposable, or will hard-bounce. Remove it to protect your sender reputation.
The server is catch-all or greylisting, so existence cannot be confirmed. Send selectively and watch engagement.
nist.gov publishes 1 MX record. The primary mail exchanger is nist-gov.mail.protection.outlook.com, hosted by Microsoft 365, and it is currently reachable and answering SMTP. Mail is routed through these servers in priority order, lowest number first.
| Priority | Hostname | IP | Status |
|---|---|---|---|
| 0 | nist-gov.mail.protection.outlook.com | 52.101.8.50 | Reachable |
220 DS4PEPF00000172.mail.protection.outlook.com Microsoft ESMTP MAIL Service ready at Mon, 1 Jun 2026 02:10:08 +0000 [08DEBCB5DEF2ECAC]Yes. nist.gov is a valid email domain, operated by National Institute of Standards and Technology. Addresses are persistent and real mail reaches a genuine recipient. Individual mailboxes still go stale, so verify each one before you send.
A live SMTP handshake connects to Nist.gov's mail server and asks whether the mailbox exists using the RCPT TO command, without ever transmitting a message. The recipient never sees the check.
Each address runs through 30+ checks including SMTP existence, catch-all detection, role-account filtering, and disposable matching. The same engine has verified billions of addresses since 2012.
Every unverified address is a gamble. Here is what happens when you skip verification and mail a list that has not been cleaned.
People leave companies. Verification flags nist.gov mailboxes deactivated since you collected them.
Expired or full nist.gov inboxes hard-bounce. A live SMTP check catches them before you hit send.
Low bounce rates keep you trusted by nist.gov mail servers and the major mailbox providers.
Verified contacts mean your CRM, lead scoring, and routing all run on addresses that reach a person.
Nist.gov is National Institute of Standards and Technology, registered through get.gov and first seen Oct 1, 1997.
The National Institute of Standards and Technology (nist.gov) is a U.S. federal agency within the Department of Commerce that promotes innovation and industrial competitiveness through measurement science, standards, and technology. NIST develops cybersecurity frameworks widely adopted by industry and government.
NIST implements mandatory DMARC enforcement per CISA BOD 18-01 with SPF, DKIM, and DMARC. As the agency that develops cybersecurity standards, NIST maintains exemplary email security practices.
The nist.gov mail servers do not operate as catch-all. Recipients are validated and invalid addresses rejected. NIST applies strict security filtering.
Reliable delivery to nist.gov requires full authentication compliance. As a cybersecurity standards body, NIST applies the highest email security standards.
Upload a CSV or TXT list of Nist.gov addresses to the bulk email verifier. Every address runs through a live SMTP handshake plus catch-all, role-account and disposable detection, and you download a clean list when processing completes. For real-time checks at signup, use the real-time email verification API.
CSV or TXT with one email per line. No formatting needed.
Each Nist.gov address is checked with a live server handshake.
Get a verified list with status codes, risk flags, and catch-all detection.
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Everything about verifying email at this domain.
Yes, nist.gov is a valid official government email domain operated by National Institute of Standards and Technology. It is used by government employees and officials for official correspondence.
No, nist.gov is not a disposable or temporary email provider. It is an official government domain used for legitimate government communications and operations.
nist.gov uses mail servers managed by National Institute of Standards and Technology. Check the MX records section above for specific server details and authentication configuration.
Yes, nist.gov addresses accept incoming email. Government mail servers typically enforce strict spam filtering, authentication checks (SPF, DKIM, DMARC), and content scanning. Ensure your sending domain is properly authenticated.
Use BulkEmailChecker to verify nist.gov addresses. Government domains may have specific SMTP behaviors including greylisting and strict rate limiting. Our tool handles these provider-specific configurations automatically.
Upload a CSV or TXT list to the bulk email verifier. Every address runs through 30+ checks including SMTP existence, catch-all detection, role-account, and disposable matching. Processing time depends on list size.
99.7% accurate using a direct SMTP handshake with nist.gov's mail servers, the same engine that has verified billions of addresses since 2012.
Other government email domains we have audited.