Is optusnet.com.au a valid email domain?
optusnet.com.au can receive email. It publishes 2 mail servers, and the first choice is mx-10.au-east.atmailcloud.com.
It is a free, public mailbox provider, and it is not on our disposable list.
SPF is published and ends with ~all. DMARC is set to reject.
Check an email address at optusnet.com.au
Type the name before the @ to check a full address. No account needed.
MX records
| Priority | Mail server | Resolves to |
|---|---|---|
| 10 | mx-10.au-east.atmailcloud.com | 52.65.162.33 |
| 20 | mx-20.au-east.atmailcloud.com | 13.237.46.187 |
SPF
Record published
v=spf1 ip4:211.29.132.0/23 ip4:211.31.132.0/23 ip4:211.29.152.0/23 ip4:103.150.252.0/24 ip4:204.145.97.0/24 include:spf.au-east.atmailcloud.com ~all
DMARC
Policy: reject
v=DMARC1;p=reject;rua=mailto:dmarc@optus.com.au;ruf=mailto:mailauth-forensics@optus.com.au
Disposable?
No, not on our disposable list.
Free provider?
Yes, a free public mailbox provider.
What this means for your email list
Is a free-provider address a problem?
Addresses at optusnet.com.au are legitimate and deliverable in general. What goes wrong is the mailbox part before the @: typos, old accounts and abandoned inboxes. That is what per-address verification catches.
Sender authentication
optusnet.com.au has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as optusnet.com.au must have SPF and DKIM set up correctly.
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Sign up to get a report summary →Frequently asked questions
- Is optusnet.com.au a valid email domain?
- Yes. optusnet.com.au publishes 2 MX records and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is optusnet.com.au a disposable email domain?
- No. optusnet.com.au is not on our disposable list, but it is a free public provider. The list is updated regularly, and new throwaway domains appear all the time.
- What are the MX records for optusnet.com.au?
- mx-10.au-east.atmailcloud.com (priority 10); mx-20.au-east.atmailcloud.com (priority 20).
- Does optusnet.com.au have SPF and DMARC?
- SPF: yes, ending ~all. DMARC: yes, policy reject.