Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
masterform.com.au
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 15:37:44 UTC · ↺ Refresh
MX Hostnames
- filter1.master-15.mailguard.com.au
- filter2.master-15.mailguard.com.au
- filter3.master-15.mailguard.com.au
MX Priorities
- filter3.master-15.mailguard.com.au: 30
- filter1.master-15.mailguard.com.au: 10
- filter2.master-15.mailguard.com.au: 20
A / AAAA Records
- 103.208.188.161
Mail Server IPs
- 20.70.88.141 ↩ mg-zaum-bing.mailguard.com.au
- 52.63.166.203 ↩ mg-aaus-tazos.mailguard.com.au
- 13.70.186.218 ↩ mg-zaum-ding.mailguard.com.au
- 20.190.127.76 ↩ mg-zaum-zarks.mailguard.com.au
- 20.53.112.187 ↩ mg-zaus-delta.mailguard.com.au
- 20.92.134.58 ↩ mg-zaus-pi.mailguard.com.au
- 52.147.56.124 ↩ mg-zaum-snatto.mailguard.com.au
- 20.92.133.122 ↩ mg-zaus-omega.mailguard.com.au
- 54.79.63.66 ↩ mg-aaus-gobbledok.mailguard.com.au
- 3.105.81.69 ↩ mg-aaus-krumm.mailguard.com.au
- 52.64.111.90
- 52.147.60.132
SOA Record
Raw SOA
ns1.thetubes.com.au thetubes.sludge.thetubes.com.au 2026012701 3600 1800 1209600 86400
Primary NS (mname)
ns1.thetubes.com.au
Admin Email (rname)
thetubes@sludge.thetubes.com.au
Serial
2026012701
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns3.thetubes.com.au
ns1.thetubes.com.au
ns2.thetubes.com.au
ns4.thetubes.com.au
SPF Record
✓ Strict (-all)
v=spf1 +a +ip4:103.12.11.244 +include:spf.protection.outlook.com +include:spf.tradecloud.com.au +include:customer.mailguard.com.au -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 +a +ip4:103.12.11.244 +include:spf.protection.outlook.com +include:spf.tradecloud.com.au +include:customer.mailguard.com.au -all
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