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Slingshot Email Verification

Safe to Send

Slingshot.co.nz is operated by Slingshot. The domain runs 4 mail exchanges and SMTP is responsive, with all three authentication standards in force.

Safe to Send
Verify Mailbox

Verify @slingshot.co.nz emails

Live SMTP handshake against slingshot.co.nz mail servers. No email is sent. 10 free per day, no signup.

@slingshot.co.nz
No email sent No signup Real-time SMTP

Trusted by 400,000+ senders

4.9/5
From 8,500+ verified reviews
I run cold for an agency. We've used Hunter, NeverBounce, and ZeroBounce. This matches them on accuracy and is meaningfully cheaper at our volume. Switched everything over in March. Priya Nair
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
4
Mail exchangers

Mail Exchange (MX) Records for slingshot.co.nz 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.

4 RECORDS
#10
spamtitan-1.slingshot.co.nz 202.180.64.208
Reachable
#10
spamtitan-2.slingshot.co.nz 202.180.64.209
Reachable
#10
spamtitan-4.slingshot.co.nz 60.234.97.14
Reachable
#10
spamtitan-3.slingshot.co.nz 60.234.97.13
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 spamtitan-1.slingshot.co.nz ESMTP Postfix
Primary mail server accepted SMTP connection and returned a banner during the live audit.

slingshot.co.nz Email Authentication SPF · DKIM · DMARC

3/3 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. Pass
TXTv=spf1 include:_spf.slingshot.co.nz include:_spf.imx.t3.nz include:servers.mcsv.net ?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. None
TXTv=DMARC1; p=none; rua=mailto:re+ienmk0fqm34@dmarc.postmarkapp.com,mailto:re+f6f34de6be33@inbound.dmarcdigests.com;
Monitoring only. Receivers take no action when SPF or DKIM fails.

slingshot.co.nz Domain Registration WHOIS · Nameservers · Registrar

WHOIS
TLD.co.nz
Authoritative Nameservers (4)
  • ns-1639.awsdns-12.co.uk
  • ns-199.awsdns-24.com
  • ns-950.awsdns-54.net
  • ns-1077.awsdns-06.org
About this Domain

About slingshot.co.nz

slingshot.co.nz is the email domain for Slingshot, a New Zealand internet service provider. Slingshot is now part of 2degrees and provides broadband, fiber, and mobile services to New Zealand customers. Email accounts on slingshot.co.nz are provided to Slingshot broadband subscribers.

slingshot.co.nz supports SPF records for sender authentication. DKIM and DMARC configurations follow standard New Zealand ISP practices.

The slingshot.co.nz mail servers validate recipients during SMTP sessions and apply standard anti-spam filtering.

For delivery to slingshot.co.nz, authenticate with SPF and DKIM, maintain clean lists, and comply with New Zealand's Unsolicited Electronic Messages Act 2007.

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Common Questions About slingshot.co.nz

Is slingshot.co.nz a disposable or temporary email provider?
No. slingshot.co.nz is not a disposable email provider. It is classified as ISP Email Provider operated by Slingshot and addresses on slingshot.co.nz are persistent rather than throwaway. Mail sent to a valid slingshot.co.nz mailbox reaches a real recipient.
How do I verify if a slingshot.co.nz email address is valid?
The fastest way to verify a slingshot.co.nz email address is to use our email checker. Enter any @slingshot.co.nz mailbox at the top of this page and our system performs a real-time SMTP handshake against slingshot.co.nz'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 slingshot.co.nz email exists without sending a message?
Yes. Our real-time email verification API connects directly to slingshot.co.nz'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 slingshot.co.nz mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for slingshot.co.nz?
slingshot.co.nz currently publishes 4 mail exchange (MX) records. The primary MX is spamtitan-1.slingshot.co.nz, which is the first server contacted when other mail systems try to deliver email to a slingshot.co.nz 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 slingshot.co.nz.
Does slingshot.co.nz use SPF, DKIM, and DMARC email authentication?
slingshot.co.nz enforces all three email authentication standards: SPF, DKIM, and DMARC (policy: none). This is the gold-standard configuration. It means receivers can verify that mail claiming to come from @slingshot.co.nz is genuine, and slingshot.co.nz's DMARC policy of 'none' instructs receivers how to handle messages that fail those checks.
Why do emails to slingshot.co.nz bounce or get blocked?
Bounces from slingshot.co.nz 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 slingshot.co.nz'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 slingshot.co.nz's receivers trust you.
How can I verify a large list of slingshot.co.nz email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of slingshot.co.nz addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, slingshot.co.nz 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 slingshot.co.nz email addresses?
Yes, with normal hygiene. slingshot.co.nz is a legitimate email service and signups from @slingshot.co.nz 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 slingshot.co.nz by default.
What email format does slingshot.co.nz use for usernames?
Most slingshot.co.nz mailboxes follow common patterns like first.last@slingshot.co.nz, firstinitiallast@slingshot.co.nz, or first@slingshot.co.nz, but the actual local-part rules depend on Slingshot. The only reliable way to confirm whether a specific @slingshot.co.nz 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 slingshot.co.nz risk score calculated?
The 0-to-100 risk score for slingshot.co.nz 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 slingshot.co.nz score is recomputed on every audit so it always reflects the live state of the domain.
Is slingshot.co.nz a valid email domain?
Yes, slingshot.co.nz is a valid email domain operated by Slingshot (now part of 2degrees), a New Zealand internet service provider.
Is slingshot.co.nz a disposable or temporary email service?
No, slingshot.co.nz is not a disposable or temporary email service. It is a permanent ISP email domain provided by Slingshot to its broadband customers in New Zealand.
What mail servers does slingshot.co.nz use?
slingshot.co.nz uses mail servers managed by 2degrees/Slingshot infrastructure. The MX records direct inbound email to their gateways for filtering and delivery.
Can I send marketing emails to slingshot.co.nz addresses?
You can send marketing emails to slingshot.co.nz addresses with valid opt-in consent. Authenticate with SPF and DKIM, comply with NZ anti-spam law, and honor unsubscribe requests.
How do I verify a slingshot.co.nz email address?
You can verify a slingshot.co.nz email address using an email verification service that checks MX records and performs SMTP-level validation to confirm the mailbox is active.