Domain Intelligence
Last Updated:
Windstream.net
Safe to Send
Windstream.net is operated by Windstream Holdings. The domain runs 1 mail exchange and SMTP is responsive, with 2 of 3 authentication standards in place.
Safe to Send
RISK
27
/100
Low
Verify Mailbox
Verify @windstream.net emails
Live SMTP handshake against windstream.net 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
Ran our entire 47k cold outbound list through this before our Q1 push. Bounce rate dropped from 9.4% to 0.8%. The SMTP-level catch on outdated B2B contacts is what set this apart from the other verifiers I tried. Andrew Mitchell · Sr. Demand Gen Manager
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 windstream.net 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
mx01.windstream.net 129.159.105.98
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 2.0.0 mx.windstream.net ESMTP ecelerity 4.8.6.74083 r(msys-ecelerity:tags/4.8.6-ga^0) Sat, 16 May 2026 06:10:57 -0400
Primary mail server accepted SMTP connection and returned a banner during the live audit.
windstream.net 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 ip4:162.39.147.0/24 ip4:69.168.106.0/24 include:spfc25.carrierzone.com ip4:216.55.154.0/24 include:registrarmail.net include:_spf.windstream.syn-alias.com ~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.
Missing
No DKIM signature detected on common selectors for windstream.net.
No DKIM signature was detected. Receivers cannot verify the integrity of outbound mail.
DMARC
Domain-based Message Authentication, Reporting & Conformance. Tells receivers what to do when SPF or DKIM checks fail: none, quarantine, or reject.
None
TXTv=DMARC1; p=none; rua=mailto:dmarc@ops.windstream.net;
Monitoring only. Receivers take no action when SPF or DKIM fails.
windstream.net Domain Registration WHOIS · Nameservers · Registrar
RegistrarMarkMonitor, Inc.
IANA ID292
RegisteredMarch 1, 2002
Last UpdatedJanuary 28, 2026
ExpiresFebruary 29, 2028
Age24 years
TLD.net
Authoritative Nameservers (4)
- ns8-auth.windstream.net
- ns5-auth.windstream.net
- ns6-auth.windstream.net
- ns7-auth.windstream.net
Registrant
Windstream Communications
UNITED STATES
Technical Contact
Hidden by registrar privacy service
About this Domain
About windstream.net
windstream.net is a U.S. ISP domain from Windstream Holdings, a broadband provider serving rural and suburban markets headquartered in Little Rock, Arkansas. Windstream provides broadband, phone, and managed services.
windstream.net implements SPF authentication.
The mail servers validate recipients and reject invalid addresses. The domain does not function as catch-all.
For delivery, authenticate with SPF. Follow CAN-SPAM requirements.
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Common Questions About windstream.net
Is windstream.net a disposable or temporary email provider?
No. windstream.net is not a disposable email provider. It is classified as ISP Email Provider operated by Windstream Holdings and addresses on windstream.net are persistent rather than throwaway. Mail sent to a valid windstream.net mailbox reaches a real recipient.
How do I verify if a windstream.net email address is valid?
The fastest way to verify a windstream.net email address is to use our free email checker. Enter any @windstream.net mailbox at the top of this page and our system performs a real-time SMTP handshake against windstream.net'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 windstream.net email exists without sending a message?
Yes. Our real-time email verification API connects directly to windstream.net'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 windstream.net mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for windstream.net?
windstream.net currently publishes 1 mail exchange (MX) record. The primary MX is mx01.windstream.net, which is the first server contacted when other mail systems try to deliver email to a windstream.net 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 windstream.net.
Does windstream.net use SPF, DKIM, and DMARC email authentication?
windstream.net has 2 of the 3 standard email authentication records in place: SPF, and DMARC (policy: none). Adding the missing layer(s) would tighten anti-spoofing protection and improve deliverability for legitimate windstream.net mail.
Why do emails to windstream.net bounce or get blocked?
Bounces from windstream.net 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 windstream.net'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 windstream.net's receivers trust you.
How can I verify a large list of windstream.net email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of windstream.net addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, windstream.net 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 windstream.net email addresses?
Yes, with normal hygiene. windstream.net is a legitimate email service and signups from @windstream.net 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 windstream.net by default.
What email format does windstream.net use for usernames?
Most windstream.net mailboxes follow common patterns like first.last@windstream.net, firstinitiallast@windstream.net, or first@windstream.net, but the actual local-part rules depend on Windstream Holdings. The only reliable way to confirm whether a specific @windstream.net 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 windstream.net risk score calculated?
The 0-to-100 risk score for windstream.net 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 windstream.net score is recomputed on every audit so it always reflects the live state of the domain.
Is windstream.net a valid email domain?
Yes, windstream.net is a valid email domain provided by Windstream Holdings to its internet service subscribers.
Is windstream.net a disposable or temporary email provider?
No, windstream.net is an ISP email domain from Windstream Holdings, provided to subscribers as part of their internet service package.
What mail server does windstream.net use?
windstream.net uses mail servers operated by Windstream Holdings. Check the MX records section above for details.
Can I send marketing emails to windstream.net addresses?
Yes, with opt-in consent. ISP email addresses may become inactive if the subscriber cancels service. Regular list verification helps maintain deliverability.
How do I verify an email address at windstream.net?
ISP email addresses at windstream.net can be verified via SMTP checks. Addresses can become invalid when subscribers change providers.