cbslgroup.com

Valid Email Server
Domain Lookup › cbslgroup.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cbslgroup.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-24 17:48:48 UTC · ↺ Refresh

MX Hostnames

  • cbslgroup-com.mail.protection.outlook.com

MX Priorities

  • cbslgroup-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 104.21.53.153 (no PTR)
  • 172.67.214.156 (no PTR)
  • 2606:4700:3035::ac43:d69c
  • 2606:4700:3036::6815:3599

Mail Server IPs

  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
  • 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA elle.ns.cloudflare.com dns.cloudflare.com 2396575299 10000 2400 604800 1800
Primary NS (mname)
elle.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396575299
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

rocky.ns.cloudflare.com
elle.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 +a +mx +ip4:81.19.187.254 +include:spf.protection.outlook.com include:mailgun.org -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 216 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

2 records
  • SPFv=spf1 +a +mx +ip4:81.19.187.254 +include:spf.protection.outlook.com include:mailgun.org -all
  • MS=ms82592815
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