stamford.com.au

Valid Email Server
Domain Lookup › stamford.com.au

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 2mo ago
stamford.com.au
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 21:13:50 UTC · ↺ Refresh

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MX Hostnames

  • mx-01-us-east-2.prod.hydra.sophos.com
  • mx-02-us-east-2.prod.hydra.sophos.com

MX Priorities

  • mx-02-us-east-2.prod.hydra.sophos.com: 20
  • mx-01-us-east-2.prod.hydra.sophos.com: 10

A / AAAA Records

  • 54.253.60.134 ↩ ec2-54-253-60-134.ap-southeast-2.compute.amazonaws.com

Mail Server IPs

  • 3.15.103.136 ↩ ec2-3-15-103-136.us-east-2.compute.amazonaws.com
  • 3.140.40.60 ↩ ec2-3-140-40-60.us-east-2.compute.amazonaws.com
  • 18.220.197.227 ↩ ec2-18-220-197-227.us-east-2.compute.amazonaws.com

SOA Record

Raw SOA o22rrdnsme01.optus.net.au hostmaster.optus.net.au 2026042226 28800 7200 604800 1800
Primary NS (mname)
o22rrdnsme01.optus.net.au
Admin Email (rname)
hostmaster@optus.net.au
Serial
2026042226
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

dns1.optus.net.au
dns0.optus.net.au

SPF Record

✓ Strict (-all)
v=spf1 ip4:124.19.112.122 ip4:124.19.57.122 ip4:160.34.38.42 ip4:160.34.38.43 ip4:151.193.18.41 ip4:192.29.151.17 ip4:192.29.149.57 include:spf.protection.outlook.com include:_spf.prod.hydra.sophos.com include:spf.synxis.com include:_spf.eml100syd.ctr.sophos.com include:spf.myguestlist.com.au include:spf.resdiary.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

4 records
  • SPFv=spf1 ip4:124.19.112.122 ip4:124.19.57.122 ip4:160.34.38.42 ip4:160.34.38.43 ip4:151.193.18.41 ip4:192.29.151.17 ip4:192.29.149.57 include:spf.protection.outlook.com include:_spf.prod.hydra.sophos.com include:spf.synxis.com include:_spf.eml100syd.ctr.sophos.com include:spf.myguestlist.com.au include:spf.resdiary.com -all
  • r9sEuUVIEbhN7vDzYQfuSrwifwnStMQAg0VZuDn0oaV6Q1Zmmy143GdkhmwCuIv5DMmZaFYbpmqXAsfx8ux21Q==
  • MS=ms36548620
  • sophos-domain-verification=efe33775e2afd37ce018ed2cd6b2f85673a49c35
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