Domain Intelligence
Last Updated:
Iinet.net.au
Safe to Send
Iinet.net.au is operated by iiNet Australia. The domain runs 2 mail exchanges and SMTP is responsive, with 2 of 3 authentication standards in place.
Safe to Send
RISK
28
/100
Low
Verify Mailbox
Verify @iinet.net.au emails
Live SMTP handshake against iinet.net.au 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
Catch-all detection alone has paid for the subscription. We were hemorrhaging credits at our previous verifier on catch-all domains that accepted the call but never bounced. Saved roughly $400 per month overnight. Brett Anderson · RevOps 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
2
Mail exchangers
Mail Exchange (MX) Records for iinet.net.au 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
mx-10.au-east.atmailcloud.com 52.65.162.33
Reachable
#20
mx-20.au-east.atmailcloud.com 13.237.46.187
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 mx.i-0ba8491b6ae89a9f1 - SMTP Ready
Primary mail server accepted SMTP connection and returned a banner during the live audit.
iinet.net.au 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.iinet.net.au include:spf.tpgtelecom.com.au include:aspmx.pardot.com include:spf.qsl.net.au ~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 iinet.net.au.
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.
Reject
TXTv=DMARC1; p=reject; aspf=r; adkim=r; sp=reject;
Strict policy. Receivers are instructed to reject any mail that fails SPF or DKIM. The strongest available setting.
iinet.net.au Domain Registration WHOIS · Nameservers · Registrar
RegistrarCorporation Service Company (Aust) Pty Ltd
IANA ID1298
Last UpdatedApril 2, 2026
TLD.au
Authoritative Nameservers (3)
- ns3.iinet.net.au
- ns1.iinet.net.au
- ns2.iinet.net.au
Registrant
Domain Administrator
iiNet Limited
Technical Contact
Domain Administrator
About this Domain
About iinet.net.au
iinet.net.au is an Australian email domain provided by iiNet, now a subsidiary of TPG Telecom. Based in Perth, iiNet provides broadband and email services with free accounts for subscribers.
iinet.net.au implements SPF authentication through TPG Telecom's infrastructure. The service complies with Australian Privacy Principles and applies standard anti-spam filtering.
The iinet.net.au mail servers enforce recipient verification and reject invalid addresses. The domain does not operate as catch-all. Standard rate limiting applies.
When emailing iinet.net.au users, authenticate with SPF and DKIM. Comply with Australia's Spam Act 2003 for commercial messages.
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iiNet Australia
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Common Questions About iinet.net.au
Is iinet.net.au a disposable or temporary email provider?
No. iinet.net.au is not a disposable email provider. It is classified as Free Email Provider operated by iiNet Australia and addresses on iinet.net.au are persistent rather than throwaway. Mail sent to a valid iinet.net.au mailbox reaches a real recipient.
How do I verify if a iinet.net.au email address is valid?
The fastest way to verify a iinet.net.au email address is to use our free email checker. Enter any @iinet.net.au mailbox at the top of this page and our system performs a real-time SMTP handshake against iinet.net.au'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 iinet.net.au email exists without sending a message?
Yes. Our real-time email verification API connects directly to iinet.net.au'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 iinet.net.au mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for iinet.net.au?
iinet.net.au currently publishes 2 mail exchange (MX) records. The primary MX is mx-10.au-east.atmailcloud.com, which is the first server contacted when other mail systems try to deliver email to a iinet.net.au 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 iinet.net.au.
Does iinet.net.au use SPF, DKIM, and DMARC email authentication?
iinet.net.au has 2 of the 3 standard email authentication records in place: SPF, and DMARC (policy: reject). Adding the missing layer(s) would tighten anti-spoofing protection and improve deliverability for legitimate iinet.net.au mail.
Why do emails to iinet.net.au bounce or get blocked?
Bounces from iinet.net.au 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 iinet.net.au'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 iinet.net.au's receivers trust you.
How can I verify a large list of iinet.net.au email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of iinet.net.au addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, iinet.net.au 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 iinet.net.au email addresses?
Yes, with normal hygiene. iinet.net.au is a legitimate email service and signups from @iinet.net.au 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 iinet.net.au by default.
What email format does iinet.net.au use for usernames?
Most iinet.net.au mailboxes follow common patterns like first.last@iinet.net.au, firstinitiallast@iinet.net.au, or first@iinet.net.au, but the actual local-part rules depend on iiNet Australia. The only reliable way to confirm whether a specific @iinet.net.au 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 iinet.net.au risk score calculated?
The 0-to-100 risk score for iinet.net.au 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 iinet.net.au score is recomputed on every audit so it always reflects the live state of the domain.
Is iinet.net.au a valid email domain?
Yes, iinet.net.au is a valid free email domain operated by iiNet Australia. It provides permanent email accounts to users.
Is iinet.net.au a disposable or temporary email provider?
No, iinet.net.au is not a disposable or temporary email provider. It offers permanent email accounts with standard email features.
What mail server does iinet.net.au use?
iinet.net.au uses mail servers operated by iiNet Australia. Check the MX records section above for specific server details.
Can I send marketing emails to iinet.net.au addresses?
Yes, with proper opt-in consent. Follow email best practices and ensure SPF, DKIM, and DMARC authentication is configured for your sending domain.
How do I verify an email address at iinet.net.au?
Use BulkEmailChecker to verify iinet.net.au addresses via SMTP checks. Verification behavior varies by provider. Our tool handles provider-specific rate limiting automatically.