Domain Intelligence
Last Updated:
Noaa Email Verification
Safe to Send
Noaa.gov is operated by National Oceanic and Atmospheric Administration. The domain runs 5 mail exchanges and SMTP is responsive, with all three authentication standards in force.
Safe to Send
RISK
5
/100
Low
Disposable
No
Persistent addresses, not throwaway
SMTP Live
Yes
Mail server responds to SMTP handshake
MX Records
5
Mail exchangers
Mail Exchange (MX) Records for noaa.gov Mail Exchange records. They tell other mail servers which hosts are responsible for receiving email at this domain, in priority order. Lower priority numbers are tried first.
#10
ASPMX.L.GOOGLE.COM 192.178.155.27
Reachable
#20
ALT2.ASPMX.L.GOOGLE.COM 172.253.116.27
Reachable
#20
ALT1.ASPMX.L.GOOGLE.COM 108.177.123.27
Reachable
#40
ALT4.ASPMX.L.GOOGLE.COM 173.194.76.27
Reachable
#40
ALT3.ASPMX.L.GOOGLE.COM 192.178.223.26
Reachable
SMTP Handshake
Simple Mail Transfer Protocol. We open a live SMTP connection to the primary MX and read the greeting banner. A response confirms the mail server is alive and accepting connections.
Responsive
BANNER220 mx.google.com ESMTP 6a1803df08f44-8ca3626174dsi30948166d6.659 - gsmtp
Primary mail server accepted SMTP connection and returned a banner during the live audit.
noaa.gov Email Authentication SPF · DKIM · DMARC
SPF
Sender Policy Framework. A DNS record listing which servers are allowed to send mail for this domain. Receivers reject or flag mail from unauthorized servers.
Pass
TXTv=spf1 ip4:107.20.210.250/32 ip4:52.1.14.157/32 ip4:140.172.0.0/16 ip4:140.208.0.0/16 ip4:140.90.0.0/16 ip4:199.255.192.0/22 ip4:199.127.232.0/22 ip4:54.240.0.0/18 ip4:69.169.224.0/20 ip4:23.249.208.0/20 ip4:23.251.224.0/19 ip4:76.223.176.0/20 ip4:54.240.64.0/19 ip4:54.240.96.0/19 ip4:52.82.172.0/22 ip4:76.223.128.0/19 include:_spf.google.com include:spf0.noaa.gov include:spf1.noaa.gov include:spf2.noaa.gov include:spf3.noaa.gov include:spf4.noaa.gov -all
Authorized senders are defined and pass SPF policy.
DKIM
DomainKeys Identified Mail. The sending server cryptographically signs outbound mail with a private key, and receivers verify the signature using a public key in DNS.
Pass
SELECTORDetected via standard selectors
A DKIM signature was detected. Outbound mail from this domain can be cryptographically verified.
DMARC
Domain-based Message Authentication, Reporting & Conformance. Tells receivers what to do when SPF or DKIM checks fail: none, quarantine, or reject.
Reject
TXTv=DMARC1; p=reject; rua=mailto:dmarc-reports@doc.gov,mailto:reports@dmarc.cyber.dhs.gov
Strict policy. Receivers are instructed to reject any mail that fails SPF or DKIM. The strongest available setting.
noaa.gov Domain Registration WHOIS · Nameservers · Registrar
Registrarget.gov
IANA ID93
RegisteredOctober 1, 1997
Last UpdatedAugust 9, 2025
ExpiresAugust 4, 2026
Age28 years
TLD.gov
Authoritative Nameservers (3)
- ns-01.noaa.gov
- ns-02.noaa.gov
- ns-03.noaa.gov
Registrant
Hidden by registrar privacy service
Technical Contact
Hidden by registrar privacy service
About this Domain
About noaa.gov
The National Oceanic and Atmospheric Administration (noaa.gov) is a U.S. federal agency within the Department of Commerce responsible for weather forecasting, ocean and atmospheric research, fisheries management, and environmental stewardship. NOAA operates the National Weather Service.
NOAA implements mandatory DMARC enforcement per CISA BOD 18-01 with SPF, DKIM, and DMARC authentication.
The noaa.gov mail servers do not function as catch-all. Recipients are validated and invalid addresses rejected. Government-standard security filtering applies.
Email delivery to noaa.gov requires full authentication compliance with SPF, DKIM, and DMARC.
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More Email Verification Tools
Free single-address checks, bulk uploads, and APIs for plugging email verification into your own product.
Common Questions About noaa.gov
Is noaa.gov a disposable or temporary email provider?
No. noaa.gov is not a disposable email provider. It is classified as Government Email operated by National Oceanic and Atmospheric Administration and addresses on noaa.gov are persistent rather than throwaway. Mail sent to a valid noaa.gov mailbox reaches a real recipient.
How do I verify if a noaa.gov email address is valid?
The fastest way to verify a noaa.gov email address is to use our email checker. Enter any @noaa.gov mailbox at the top of this page and our system performs a real-time SMTP handshake against noaa.gov's mail servers, confirming whether the mailbox exists, is reachable, and is safe to send to. No email is ever delivered during the check.
Can I check if a noaa.gov email exists without sending a message?
Yes. Our real-time email verification API connects directly to noaa.gov's mail server, opens an SMTP session, and queries the mailbox using the RCPT TO command without ever transmitting an actual email. The server's response confirms whether the noaa.gov mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for noaa.gov?
noaa.gov currently publishes 5 mail exchange (MX) records. The primary MX is ASPMX.L.GOOGLE.COM, which is the first server contacted when other mail systems try to deliver email to a noaa.gov address. The full list with priorities and IP addresses is in the MX Records panel above. MX records tell sending servers where to route email for noaa.gov.
Does noaa.gov use SPF, DKIM, and DMARC email authentication?
noaa.gov enforces all three email authentication standards: SPF, DKIM, and DMARC (policy: reject). This is the gold-standard configuration. It means receivers can verify that mail claiming to come from @noaa.gov is genuine, and noaa.gov's DMARC policy of 'reject' instructs receivers how to handle messages that fail those checks.
Why do emails to noaa.gov bounce or get blocked?
Bounces from noaa.gov usually fall into three buckets: the mailbox doesn't exist (5xx user unknown), the inbox is full, or your sending domain isn't authenticated to noaa.gov's satisfaction. The fastest fix is to run each address through a free email verifier before you send, and to make sure your own SPF, DKIM, and DMARC are configured correctly so noaa.gov's receivers trust you.
How can I verify a large list of noaa.gov email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of noaa.gov addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, noaa.gov catch-all detection, role-account detection, and disposable-domain matching. Results typically come back within minutes and previously-failed addresses on your blacklist are reprocessed for free. For continuous high-volume needs, see our unlimited email verification API.
Is it safe to accept signups from noaa.gov email addresses?
Yes, with normal hygiene. noaa.gov is a legitimate email service and signups from @noaa.gov behave like any other real user. Pipe each address through a real-time email verifier API at the moment of signup to catch typos and dead mailboxes, but there is no need to block noaa.gov by default.
What email format does noaa.gov use for usernames?
Most noaa.gov mailboxes follow common patterns like first.last@noaa.gov, firstinitiallast@noaa.gov, or first@noaa.gov, but the actual local-part rules depend on National Oceanic and Atmospheric Administration. The only reliable way to confirm whether a specific @noaa.gov address exists is to run it through a free email verification tool. Guessing patterns will produce a high bounce rate and damage your sender reputation.
How is the noaa.gov risk score calculated?
The 0-to-100 risk score for noaa.gov combines disposable-domain classification, mail-server reachability, MX record presence and depth, SPF / DKIM / DMARC enforcement, DMARC policy strength, SMTP banner response, and domain age. Lower scores mean safer to send to. Disposable domains are pinned at the high end of the scale. The noaa.gov score is recomputed on every audit so it always reflects the live state of the domain.
Is noaa.gov a valid government email domain?
Yes, noaa.gov is a valid official government email domain operated by National Oceanic and Atmospheric Administration. It is used by government employees and officials for official correspondence.
Is noaa.gov a disposable or temporary email provider?
No, noaa.gov is not a disposable or temporary email provider. It is an official government domain used for legitimate government communications and operations.
What mail server does noaa.gov use?
noaa.gov uses mail servers managed by National Oceanic and Atmospheric Administration. Check the MX records section above for specific server details and authentication configuration.
Can I send emails to noaa.gov addresses?
Yes, noaa.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.
How do I verify an email address at noaa.gov?
Use BulkEmailChecker to verify noaa.gov addresses. Government domains may have specific SMTP behaviors including greylisting and strict rate limiting. Our tool handles these provider-specific configurations automatically.