Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
guardianbuilding.com.au
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 18:17:08 UTC · ↺ Refresh
MX Hostnames
- guardianbuilding-com-au.mail.protection.outlook.com
MX Priorities
- guardianbuilding-com-au.mail.protection.outlook.com: 1
A / AAAA Records
- 162.159.135.42 (no PTR)
Mail Server IPs
- 52.101.149.9 ↩ mail-sy2pr01cu00501.inbound.protection.outlook.com
- 52.101.149.0 ↩ mail-sy2pr01cu00300.inbound.protection.outlook.com
- 52.101.149.1 ↩ mail-sy8pr01cu00101.inbound.protection.outlook.com
- 52.101.149.2 ↩ mail-sy5pr01cu00902.inbound.protection.outlook.com
- 2a01:111:f403:cc31::3 ↩ mail-sy2pr01cu00503.inbound.protection.outlook.com
- 2a01:111:f403:cc33::1 ↩ mail-meupr01cu00301.inbound.protection.outlook.com
- 2a01:111:f403:cc31::2 ↩ mail-sy5pr01cu00902.inbound.protection.outlook.com
- 2a01:111:f403:cc31::1 ↩ mail-sy8pr01cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.dnspackage.com admin.sectigo.com 1733795571 86400 7200 604800 300
Primary NS (mname)
ns1.dnspackage.com
Admin Email (rname)
admin@sectigo.com
Serial
1733795571
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns3.dnspackage.com
ns4.dnspackage.com
ns1.dnspackage.com
ns2.dnspackage.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.mlsend.com include:spf.protection.outlook.com ip4:172.93.123.162 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
default._domainkey
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- mailerlite-domain-verification=b297198ecf5a3c499d615c6d5bea4dc60b29e529
- SPFv=spf1 include:_spf.mlsend.com include:spf.protection.outlook.com ip4:172.93.123.162 -all
- MS=ms24295319
- brevo-code:9e92804f91d12ac79baed02d0003b521
- google-site-verification=_TeoYO4aJ-W3cIHjUrOHPISF-QI2r5iuOES4Afpgazs
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