Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
masterbuilders.com.au
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 07:58:24 UTC · ↺ Refresh
MX Hostnames
- masterbuilders-com-au.mail.protection.outlook.com
MX Priorities
- masterbuilders-com-au.mail.protection.outlook.com: 0
A / AAAA Records
- 54.66.230.228 ↩ ec2-54-66-230-228.ap-southeast-2.compute.amazonaws.com
Mail Server IPs
- 52.101.149.0 ↩ mail-sy2pr01cu00300.inbound.protection.outlook.com
- 52.101.149.9 ↩ mail-sy2pr01cu00501.inbound.protection.outlook.com
- 52.101.151.0 ↩ mail-meupr01cu00200.inbound.protection.outlook.com
- 52.101.151.5 ↩ mail-meupr01cu00305.inbound.protection.outlook.com
- 2a01:111:f403:cc31:: ↩ mail-sy2pr01cu00300.inbound.protection.outlook.com
- 2a01:111:f403:cc31::1 ↩ mail-sy8pr01cu00101.inbound.protection.outlook.com
- 2a01:111:f403:cc31::3 ↩ mail-sy2pr01cu00503.inbound.protection.outlook.com
- 2a01:111:f403:cc33:: ↩ mail-meupr01cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
adi.ns.cloudflare.com dns.cloudflare.com 2397902076 10000 2400 604800 1800
Primary NS (mname)
adi.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397902076
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
adi.ns.cloudflare.com
augustus.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:58.6.91.96 ip4:210.84.61.94 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:[email protected];ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
3 records- SPFv=spf1 ip4:58.6.91.96 ip4:210.84.61.94 include:spf.protection.outlook.com -all
- MS=ms87973646
- asv=d8e331ed5084ade8c78573102c36918c
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