Domain Overview
DNS: ✓ 13h ago
Checker: ✓ 13h ago
premierconcrete.biz
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-10-04 02:54:08 UTC · ↺ Refresh
MX Hostnames
- premierconcrete-biz.mail.protection.outlook.com
MX Priorities
- premierconcrete-biz.mail.protection.outlook.com: 0
A / AAAA Records
- 35.185.25.70 ↩ 70.25.185.35.bc.googleusercontent.com
Mail Server IPs
- 52.101.40.26 ↩ mail-cy7pr21cu00102.inbound.protection.outlook.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 52.101.60.163 ↩ mail-bn3pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f903::3 ↩ mail-mn0pr04cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c927::6 ↩ mail-bn3pr0501cu00106.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f909::6 ↩ mail-bn3pr04cu00106.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1.bdm.microsoftonline.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns2.bdm.microsoftonline.com
ns3.bdm.microsoftonline.com
ns4.bdm.microsoftonline.com
ns1.bdm.microsoftonline.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
default._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
7 records- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms92336971
- google-site-verification=qdnGhN6T5A_Be6oNBtt1haVa-j6n7uZzF6SWAM4Tm9s
- MS=ms15959487
- duo_sso_verification=CBibRhucOSxIJJemi5HhzONtjTFtwubpS5k4lqQy5mZBGJJr9fWCzH0gywiNPr9j
- apple-domain-verification=fsSzGCPwAXcMxpqS
- mscid=5wSiQzKK0PAigh7lKi0muxRqgV+xAu2w2WmoJAyR95bSWSVfeVru/YXmWZlr1VwJGZeXLuIb56JKjRXoJ8YySg==
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