Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
crbgroup.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 21:20:45 UTC · ↺ Refresh
MX Hostnames
- crbgroup-com.mail.protection.outlook.com
MX Priorities
- crbgroup-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.18.5.156 (no PTR)
- 104.18.4.156 (no PTR)
- 2606:4700::6812:59c
- 2606:4700::6812:49c
Mail Server IPs
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
nicole.ns.cloudflare.com dns.cloudflare.com 2398855675 10000 2400 604800 1800
Primary NS (mname)
nicole.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398855675
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
tim.ns.cloudflare.com
nicole.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:12.108.156.89 ip4:12.108.156.94 ip4:146.88.111.79 ip4:149.72.231.47 ip4:149.72.196.66 include:spf.protection.outlook.com include:spf.intermedia.net include:spf-004e6501.pphosted.com include:7593029.spf03.hubspotemail.net -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
7 records- atlassian-domain-verification=IXd1UySHlVPMW6xO2HOSBEuF7mCBW81fXJlTxlgs4yW0UIy2ybEPh+QSlCSFY4ng
- google-site-verification=BURtegwfLb_47aqNQ-R-kJudUmdXqhOvWhjdNDRikS0
- google-site-verification=G-SqXId0auTAfGXas4r7v15oh5QhIMUYXDuKiRjaaK8
- google-site-verification=OqzYQx01BDQyMGd63ezWBQi2bAZke4EDGg_kNMruOXI
- pexip-ms-tenant-domain-verification=f3019af0-77be-45f8-8629-80321ea3510b
- SPFv=spf1 a mx ip4:12.108.156.89 ip4:12.108.156.94 ip4:146.88.111.79 ip4:149.72.231.47 ip4:149.72.196.66 include:spf.protection.outlook.com include:spf.intermedia.net include:spf-004e6501.pphosted.com include:7593029.spf03.hubspotemail.net -all
- _globalsign-domain-verification=D1kOVXjiPViDHkHhl-pa0wkMasgsRtEcLfzTDVT_xk
Full email verification for crbgroup.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits