Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cbr.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 10:00:27 UTC · ↺ Refresh
MX Hostnames
- mx4.cbr-mx.de
- mx2.cbr-mx.de
- mx3.cbr-mx.de
- mx1.cbr-mx.de
MX Priorities
- mx4.cbr-mx.de: 20
- mx1.cbr-mx.de: 10
- mx2.cbr-mx.de: 10
- mx3.cbr-mx.de: 20
A / AAAA Records
- 141.101.90.99 (no PTR)
- 141.101.90.96 (no PTR)
- 141.101.90.97 (no PTR)
- 141.101.90.98 (no PTR)
- 2a06:98c1:3200::90:2 (no PTR)
- 2a06:98c1:3200::90:0 (no PTR)
- 2a06:98c1:3200::90:3
- 2a06:98c1:3200::90:1
Mail Server IPs
- 108.143.159.229 ↩ mx4.cbr-mx.de
- 193.158.40.45 ↩ mx1.cbr-mx.de
- 193.158.40.46 ↩ mx2.cbr-mx.de
- 40.68.156.177 ↩ mx3.cbr-mx.de
SOA Record
Raw SOA
sarah.ns.cloudflare.com dns.cloudflare.com 2400433678 10000 2400 604800 1800
Primary NS (mname)
sarah.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400433678
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
sarah.ns.cloudflare.com
tate.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.cbr-mx.de include:spf.crsend.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; ri=86400;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
9 records- SPFv=spf1 include:spf.cbr-mx.de include:spf.crsend.com -all
- OPQ2zhP0flByTYZRjptmYfmJKqwAFVSaeFMdYSVE6QJODIZ4BWj33FTfhNrAtUI7je+PHcjNbdLYvbF/g3qv2Q==
- a0acea2e84b4c4aab77f69cdda3c96b25ec3584c28f20742ef0853f51e8f2f4
- apple-domain-verification=CyaLvTolzuUKcfrU
- atlassian-domain-verification=LfaqdQ111OL8gIPkgRVM3uXXAPprLjMqazOFuQF27x13E1X9zT2bSxr1gbVOeBlp
- docker-verification=a4b42b6c-0474-47a6-b7a2-754b67bc8926
- docusign=e7414936-1367-4005-afbb-e3470d71c224
- google-site-verification=_v0HfA0C24hnXTqr1C5mXJqbIIfL98grYfA3fXnhxH8
- google-site-verification=tRbzPpERgcmnB0Cqz-9Pz9JviXS2h_U5fKh1LFB7Wjk
Full email verification for cbr.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits