Domain Intelligence
Last Updated:
Entergy Email Verification
Safe to Send
Entergy.com is operated by Entergy Corporation. The domain runs 1 mail exchange and SMTP is responsive, with all three authentication standards in force.
Safe to Send
RISK
10
/100
Low
Verify Mailbox
Verify @entergy.com emails
Live SMTP handshake against entergy.com 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
Switched after a billing dispute with NeverBounce. Same SMTP results on a 5k test sample. The MX, SPF, DKIM lookup tools are a hidden value-add for debugging client deliverability complaints. James Wexler · Growth Engineer
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
1
Mail exchangers
Mail Exchange (MX) Records for entergy.com 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
entergy-com.mail.protection.outlook.com 52.101.11.12
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 DS1PEPF00017E09.mail.protection.outlook.com Microsoft ESMTP MAIL Service ready at Tue, 19 May 2026 20:10:12 +0000 [08DEB3181758948F]
Primary mail server accepted SMTP connection and returned a banner during the live audit.
entergy.com 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.mandrillapp.com include:spf.protection.outlook.com include:_spf.salesforce.com include:servers.mcsv.net ip4:198.8.0.0/21 ip4:144.49.240.0/21 ip4:209.212.245.244 ip4:174.136.130.77 ip4:70.36.36.220 ~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;
Strict policy. Receivers are instructed to reject any mail that fails SPF or DKIM. The strongest available setting.
entergy.com Domain Registration WHOIS · Nameservers · Registrar
RegistrarNetwork Solutions, LLC
IANA ID2
RegisteredSeptember 30, 1993
Last UpdatedSeptember 16, 2025
ExpiresSeptember 29, 2032
Age32 years
TLD.com
Authoritative Nameservers (4)
- NS.ROC.ENTERGY.COM
- DBRU.BR.NS.ELS-GMS.ATT.NET
- NS.JMS.ENTERGY.COM
- DMTU.MT.NS.ELS-GMS.ATT.NET
Registrant
Registrant Street: 639 LOYOLA AVE
Entergycorp@entergy.com·NEW ORLEANS, LA, UNITED STATES·15045767600
Technical Contact
entergycorp@entergy.com·UNITED STATES·15045767600
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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 entergy.com
Is entergy.com a disposable or temporary email provider?
No. entergy.com is not a disposable email provider. It is classified as Corporate Email operated by Entergy Corporation and addresses on entergy.com are persistent rather than throwaway. Mail sent to a valid entergy.com mailbox reaches a real recipient.
How do I verify if a entergy.com email address is valid?
The fastest way to verify a entergy.com email address is to use our email checker. Enter any @entergy.com mailbox at the top of this page and our system performs a real-time SMTP handshake against entergy.com'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 entergy.com email exists without sending a message?
Yes. Our real-time email verification API connects directly to entergy.com'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 entergy.com mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for entergy.com?
entergy.com currently publishes 1 mail exchange (MX) record. The primary MX is entergy-com.mail.protection.outlook.com, which is the first server contacted when other mail systems try to deliver email to a entergy.com 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 entergy.com.
Does entergy.com use SPF, DKIM, and DMARC email authentication?
entergy.com 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 @entergy.com is genuine, and entergy.com's DMARC policy of 'reject' instructs receivers how to handle messages that fail those checks.
Why do emails to entergy.com bounce or get blocked?
Bounces from entergy.com 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 entergy.com'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 entergy.com's receivers trust you.
How can I verify a large list of entergy.com email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of entergy.com addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, entergy.com 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 entergy.com email addresses?
Yes, with normal hygiene. entergy.com is a legitimate email service and signups from @entergy.com 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 entergy.com by default.
What email format does entergy.com use for usernames?
Most entergy.com mailboxes follow common patterns like first.last@entergy.com, firstinitiallast@entergy.com, or first@entergy.com, but the actual local-part rules depend on Entergy Corporation. The only reliable way to confirm whether a specific @entergy.com 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 entergy.com risk score calculated?
The 0-to-100 risk score for entergy.com 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 entergy.com score is recomputed on every audit so it always reflects the live state of the domain.
Is entergy.com a valid corporate email domain?
Yes, entergy.com is the official corporate email domain for Entergy Corporation. It is used for internal business communications and is not available for public registration.
Is entergy.com a disposable or temporary email provider?
No, entergy.com is a corporate email domain belonging to Entergy Corporation, used exclusively by employees and authorized personnel.
What mail server does entergy.com use?
entergy.com uses enterprise-grade mail infrastructure. Check the MX records section above for specific mail server details.
Can I send marketing emails to entergy.com addresses?
B2B marketing to entergy.com requires proper consent. Corporate domains may use catch-all configurations, so verify individual addresses before sending.
How do I verify an email address at entergy.com?
Corporate domains like entergy.com may use catch-all configurations. Use BulkEmailChecker's advanced verification to detect catch-all behavior.