optusnet.com

Valid Email Server
Domain Lookup › optusnet.com

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
optusnet.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 02:50:15 UTC · ↺ Refresh

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MX Hostnames

  • mx-20.au-east.atmailcloud.com
  • mx-10.au-east.atmailcloud.com

MX Priorities

  • mx-20.au-east.atmailcloud.com: 20
  • mx-10.au-east.atmailcloud.com: 10

A / AAAA Records

  • 211.29.132.105 (no PTR)

Mail Server IPs

  • 13.237.46.187 ↩ ec2-13-237-46-187.ap-southeast-2.compute.amazonaws.com
  • 52.65.162.33 ↩ ec2-52-65-162-33.ap-southeast-2.compute.amazonaws.com

SOA Record

Raw SOA ns1.optusnet.com.au hostmaster.optusnet.com.au 2024100103 3600 1800 3600000 86400
Primary NS (mname)
ns1.optusnet.com.au
Admin Email (rname)
hostmaster@optusnet.com.au
Serial
2024100103
Refresh
3600s
Retry
1800s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

ns2.optusnet.com.au
ns1.optusnet.com.au

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:211.29.132.0/23 ip4:211.31.132.0/23 ip4:211.29.152.0/23 ~all
📊 DNS lookups: 0/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • SPFv=spf1 ip4:211.29.132.0/23 ip4:211.31.132.0/23 ip4:211.29.152.0/23 ~all
  • dtm-domain-verification=84kHhHYeBtw8I24jLbJd5iW3Vp467VVwdg5rzMLDDxM
  • SPFv=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
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