Domain Intelligence
Last Updated:
Energy Email Verification
Safe to Send
Energy.gov is operated by Department of Energy. The domain runs 2 mail exchanges and SMTP is responsive, with all three authentication standards in force.
Safe to Send
RISK
10
/100
Low
Verify Mailbox
Verify @energy.gov emails
Live SMTP handshake against energy.gov mail servers. No email is sent. 10 free per day, no signup.
Trusted by 400,000+ senders
4.9/5
From 8,500+ verified reviews
Disposable detection is the strongest I've tested. We were drowning in fake signups before integration. Fraudulent account creation dropped roughly 80% in the first 10 days. Risk score on the lookup pages helps our analysts triage faster too. Elena Reyes · Trust & Safety, Fintech
SOC 2 Type II
GDPR
CCPA
99.7% Accuracy
Disposable
No
Persistent addresses, not throwaway
SMTP Live
Yes
Mail server responds to SMTP handshake
MX Records
2
Mail exchangers
Mail Exchange (MX) Records for energy.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
mxb-002bc302.gslb.gpphosted.com 67.231.155.102
Reachable
#10
mxa-002bc302.gslb.gpphosted.com 67.231.147.102
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 mx0f-002bc302.gpphosted.com ESMTP mfa-m0195271
Primary mail server accepted SMTP connection and returned a banner during the live audit.
energy.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 include:_spf.doe.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; sp=reject; fo=1; pct=100; adkim=r; aspf=r; rf=afrf; ri=86400; rua=mailto:reports@dmarc.cyber.dhs.gov,mailto:EITS.DMARCRUA@hq.doe.gov; ruf=mailto:reports@dmarc.cyber.dhs.gov,mailto:EITS.DMARCRUF@hq.doe.gov
Strict policy. Receivers are instructed to reject any mail that fails SPF or DKIM. The strongest available setting.
energy.gov Domain Registration WHOIS · Nameservers · Registrar
Registrarget.gov
IANA ID8888888
RegisteredAugust 20, 1999
Last UpdatedMarch 21, 2026
ExpiresAugust 8, 2026
Age26 years
TLD.gov
Authoritative Nameservers (3)
- blue.foundationdns.com
- blue.foundationdns.net
- blue.foundationdns.org
Registrant
Hidden by registrar privacy service
Technical Contact
Hidden by registrar privacy service
About this Domain
About energy.gov
The domain energy.gov belongs to the U.S. Department of Energy (DOE), the federal cabinet department responsible for energy policy, nuclear safety, and scientific research. Headquartered in Washington, D.C., the DOE manages the nation's nuclear weapons stockpile, national laboratories, energy production initiatives, and renewable energy research programs.
As a federal .gov domain, energy.gov is subject to CISA Binding Operational Directive 18-01, mandating DMARC, SPF, and DKIM implementation. The Department of Energy's involvement in nuclear security and critical infrastructure makes it a high-value target for state-sponsored phishing and espionage attempts.
DOE mail servers do not function as catch-all systems. The SMTP infrastructure enforces strict recipient validation, rejecting messages to nonexistent addresses. Given the sensitivity of DOE operations, its email servers apply aggressive rate limiting, greylisting, and advanced threat detection to all inbound connections.
Delivering email to energy.gov requires the highest level of authentication compliance. DOE email gateways employ advanced content filtering, malware sandboxing, and multi-layered sender verification. Full SPF, DKIM, and DMARC alignment with a strong sender reputation is essential for delivery to Department of Energy addresses.
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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 energy.gov
Is energy.gov a disposable or temporary email provider?
No. energy.gov is not a disposable email provider. It is classified as Government Email operated by Department of Energy and addresses on energy.gov are persistent rather than throwaway. Mail sent to a valid energy.gov mailbox reaches a real recipient.
How do I verify if a energy.gov email address is valid?
The fastest way to verify a energy.gov email address is to use our email checker. Enter any @energy.gov mailbox at the top of this page and our system performs a real-time SMTP handshake against energy.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 energy.gov email exists without sending a message?
Yes. Our real-time email verification API connects directly to energy.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 energy.gov mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for energy.gov?
energy.gov currently publishes 2 mail exchange (MX) records. The primary MX is mxb-002bc302.gslb.gpphosted.com, which is the first server contacted when other mail systems try to deliver email to a energy.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 energy.gov.
Does energy.gov use SPF, DKIM, and DMARC email authentication?
energy.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 @energy.gov is genuine, and energy.gov's DMARC policy of 'reject' instructs receivers how to handle messages that fail those checks.
Why do emails to energy.gov bounce or get blocked?
Bounces from energy.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 energy.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 energy.gov's receivers trust you.
How can I verify a large list of energy.gov email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of energy.gov addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, energy.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 energy.gov email addresses?
Yes, with normal hygiene. energy.gov is a legitimate email service and signups from @energy.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 energy.gov by default.
What email format does energy.gov use for usernames?
Most energy.gov mailboxes follow common patterns like first.last@energy.gov, firstinitiallast@energy.gov, or first@energy.gov, but the actual local-part rules depend on Department of Energy. The only reliable way to confirm whether a specific @energy.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 energy.gov risk score calculated?
The 0-to-100 risk score for energy.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 energy.gov score is recomputed on every audit so it always reflects the live state of the domain.
Is energy.gov a valid email domain?
Yes, energy.gov is an official government email domain used by Department of Energy. Government domains are verified and regulated, making them highly trustworthy.
Is energy.gov a disposable or temporary email provider?
No, energy.gov is an official government domain used by Department of Energy for official government communications.
What mail server does energy.gov use?
energy.gov uses government-managed mail infrastructure with strict security measures and email authentication.
Can I send marketing emails to energy.gov addresses?
Sending unsolicited marketing emails to government addresses at energy.gov is generally not recommended. Only send with explicit opt-in consent.
How do I verify an email address at energy.gov?
Government domains like energy.gov often have strict mail server configurations. Use BulkEmailChecker for reliable verification results.