SPF and DMARC records for optusnet.com.au

Live SPF and DMARC lookup for optusnet.com.au: the raw TXT records and the policy they enforce.

try:

Accepts mail
mail hosts
mx-10.au-east.atmailcloud.com, mx-20.au-east.atmailcloud.com
provider
other
spf record
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
dmarc record
v=DMARC1;p=reject;rua=mailto:[email protected];ruf=mailto:[email protected]
disposable domain
no
free consumer provider
yes

SPF for optusnet.com.au

optusnet.com.au publishes an SPF record; it authorises 1 included sender list, and the record ends in ~all (soft fail): mail from unlisted servers is marked suspicious but usually still delivered.

DMARC for optusnet.com.au

The DMARC policy for optusnet.com.au is p=reject: mail that fails SPF and DKIM alignment is refused outright. It is the strictest setting and the one Gmail and Yahoo now expect from bulk senders.

Why it matters

SPF says which servers may send as optusnet.com.au; DKIM signs the messages; DMARC tells receivers what to do when neither checks out and reports back to the owner. Together they decide whether mail from optusnet.com.au is trusted, and whether someone else can pretend to be optusnet.com.au. For verification they are a domain-quality signal: Spaw folds a missing SPF record into the risk score and reports has_spf and dmarc_policy on every email and domain lookup.

More checks for optusnet.com.au

checked 2026-09-03 · sources: live-dns 2026-09-03 · disposable-domains 2026-09-02 · free-provider-domains 2026-09-02 · mx-provider-patterns 2026-09-03

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