Yes. You can verify any @Nsa.gov address in real time with a direct SMTP handshake that provides 99.7% accuracy. Nsa.gov is operated by National Security Agency, runs 6 mail servers, enforces 2 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.
nsa.gov publishes 6 MX records. The primary mail exchanger is pri-jeemsg.eemsg.mail.mil, hosted by mail.mil, and it is currently reachable and answering SMTP. Mail is routed through these servers in priority order, lowest number first.
| Priority | Hostname | IP | Status |
|---|---|---|---|
| 10 | pri-jeemsg.eemsg.mail.mil | 156.112.250.15 | Reachable |
| 20 | sec-jeemsg.eemsg.mail.mil | 156.112.250.9 | Reachable |
| 30 | w455-emsm-u11.ncsc.mil | 214.80.121.18 | Reachable |
| 30 | emsm-gh1-uea11.ncsc.mil | 214.29.60.3 | Reachable |
| 30 | w455-emsm-u10.ncsc.mil | 214.80.121.17 | Reachable |
| 30 | emsm-gh1-uea10.ncsc.mil | 214.29.60.2 | Reachable |
220 UEUR19PA31.eemsg.mail.mil ESMTPYes. nsa.gov is a valid email domain, operated by National Security Agency. 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 Nsa.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 nsa.gov mailboxes deactivated since you collected them.
Expired or full nsa.gov inboxes hard-bounce. A live SMTP check catches them before you hit send.
Low bounce rates keep you trusted by nsa.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.
Nsa.gov is National Security Agency, registered through get.gov and first seen Oct 1, 1997.
The National Security Agency (nsa.gov) is a U.S. intelligence agency within the Department of Defense responsible for signals intelligence (SIGINT), cybersecurity, and information assurance. The NSA is headquartered at Fort Meade, Maryland, and is one of the world's leading cryptologic organizations.
The NSA implements the strictest email authentication with SPF, DKIM, and DMARC enforcement. As the nation's top signals intelligence agency, NSA's email security is among the most rigorous in the federal government, facing constant nation-state targeting.
The nsa.gov mail servers do not operate as catch-all. Recipients are validated and invalid addresses rejected. NSA applies the strictest possible security filtering.
Email delivery to nsa.gov requires flawless authentication. NSA gateways apply the most rigorous filtering standards of any federal agency.
Upload a CSV or TXT list of Nsa.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 Nsa.gov address is checked with a live server handshake.
Get a verified list with status codes, risk flags, and catch-all detection.
Pay as you go. No subscriptions, and credits never expire.
Everything about verifying email at this domain.
Yes, nsa.gov is an official government email domain used by National Security Agency. Government domains are verified and regulated, making them highly trustworthy.
No, nsa.gov is an official government domain used by National Security Agency for official government communications.
nsa.gov uses government-managed mail infrastructure with strict security measures and email authentication.
Sending unsolicited marketing emails to government addresses at nsa.gov is generally not recommended. Only send with explicit opt-in consent.
Government domains like nsa.gov often have strict mail server configurations. Use BulkEmailChecker for reliable verification results.
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 nsa.gov's mail servers, the same engine that has verified billions of addresses since 2012.
Other government email domains we have audited.