Domain Intelligence
Last Updated:

Ono.com

High Risk

Ono.com is operated by ONO. The domain runs no MX records and SMTP is not currently responding, with no email authentication detected.

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Live SMTP handshake against ono.com mail servers. No email is sent. 10 free per day, no signup.

@ono.com
No email sent No signup Real-time SMTP

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SOC 2 Type II GDPR CCPA 99.7% Accuracy
Disposable
No
Persistent addresses, not throwaway
SMTP Live
No
Mail server not responding to SMTP
MX Records
0
Mail exchangers

Mail Exchange (MX) Records for ono.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.

0 RECORDS
No MX records were found for this domain. The domain cannot receive mail.
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. No Response
Primary mail server did not respond to SMTP within the audit timeout. Mail to ono.com may bounce.

ono.com Email Authentication SPF · DKIM · DMARC

0/3 PASS
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. Missing
No SPF TXT record published for ono.com.
No valid SPF record was published. Receivers cannot confirm which servers are allowed to send mail for this domain.
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 ono.com.
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. Missing
No DMARC record published at _dmarc.ono.com.
No DMARC policy is published. Receivers have no instruction for handling failed messages from this domain.

ono.com Domain Registration WHOIS · Nameservers · Registrar

30 YEARS OLD
RegistrarNOMINALIA INTERNET S.L.
IANA ID76
RegisteredJanuary 16, 2008
Last UpdatedNovember 30, 2025
ExpiresDecember 13, 2026
Age30 years
TLD.com
Authoritative Nameservers (3)
  • DNS02.ONO.COM
  • DNS01.ONO.COM
  • DNS03.ONO.COM
Registrant
Hidden by registrar privacy service
Technical Contact
Hidden by registrar privacy service
About this Domain

About ono.com

ono.com is a Spanish ISP domain from ONO, a former cable operator acquired by Vodafone Spain. Legacy ono.com addresses continue through Vodafone infrastructure.

ono.com operates through Vodafone Spain's infrastructure with SPF authentication. Compliant with Spanish and EU GDPR.

The mail servers validate recipients and reject invalid addresses. The domain does not function as catch-all.

For delivery, authenticate with SPF. Comply with Spanish regulations.

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Common Questions About ono.com

Is ono.com a disposable or temporary email provider?
No. ono.com is not a disposable email provider. It is classified as ISP Email Provider operated by ONO and addresses on ono.com are persistent rather than throwaway. Mail sent to a valid ono.com mailbox reaches a real recipient.
How do I verify if a ono.com email address is valid?
The fastest way to verify a ono.com email address is to use our free email checker. Enter any @ono.com mailbox at the top of this page and our system performs a real-time SMTP handshake against ono.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 ono.com email exists without sending a message?
Yes. Our real-time email verification API connects directly to ono.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 ono.com mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for ono.com?
ono.com has no MX records published, which means the domain cannot currently receive email. Any message sent to a ono.com address will hard-bounce at the sending server.
Does ono.com use SPF, DKIM, and DMARC email authentication?
ono.com does not currently publish any of the three standard email authentication records (SPF, DKIM, DMARC). This means receivers have no automated way to confirm whether mail claiming to come from @ono.com is legitimate, which can hurt deliverability and increases the risk of spoofing.
Why do emails to ono.com bounce or get blocked?
Bounces from ono.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 ono.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 ono.com's receivers trust you.
How can I verify a large list of ono.com email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of ono.com addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, ono.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 ono.com email addresses?
Yes, with normal hygiene. ono.com is a legitimate email service and signups from @ono.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 ono.com by default.
What email format does ono.com use for usernames?
Most ono.com mailboxes follow common patterns like first.last@ono.com, firstinitiallast@ono.com, or first@ono.com, but the actual local-part rules depend on ONO. The only reliable way to confirm whether a specific @ono.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 ono.com risk score calculated?
The 0-to-100 risk score for ono.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 ono.com score is recomputed on every audit so it always reflects the live state of the domain.
Is ono.com a valid ISP email domain?
Yes, ono.com is a valid email domain provided by ONO to its internet subscribers. It is a legitimate ISP-issued email address.
Is ono.com a disposable or temporary email provider?
No, ono.com is not a disposable or temporary email provider. It is an ISP-provided email service tied to an internet subscription from ONO.
What mail server does ono.com use?
ono.com uses mail servers operated by ONO. Check the MX records section above for specific server details and authentication configuration.
Can I send marketing emails to ono.com addresses?
Yes, you can send marketing emails to ono.com addresses with proper opt-in consent. ISP email providers apply spam filtering, and addresses may become inactive if subscribers cancel their internet service. Regular list verification is recommended.
How do I verify an email address at ono.com?
Use BulkEmailChecker to verify ono.com addresses via SMTP checks. ISP domains may have specific rate limiting or greylisting behaviors. Our tool handles these provider-specific configurations automatically.