Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ksk-immobilien.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 19:59:36 UTC · ↺ Refresh
MX Hostnames
- mx3.onoffice.de
- mx1.onoffice.de
- mx2.onoffice.de
MX Priorities
- mx2.onoffice.de: 10
- mx3.onoffice.de: 20
- mx1.onoffice.de: 10
A / AAAA Records
- 34.89.187.228 ↩ 228.187.89.34.bc.googleusercontent.com
Mail Server IPs
- 95.130.253.71 ↩ mx2.onoffice.de
- 95.130.253.56 ↩ mx3.onoffice.de
- 95.130.253.60 ↩ mx1.onoffice.de
SOA Record
Raw SOA
dns11.netcologne.de hostmaster.netcologne.de 2026022602 28800 7200 604800 3600
Primary NS (mname)
dns11.netcologne.de
Admin Email (rname)
hostmaster@netcologne.de
Serial
2026022602
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dns11.netcologne.de
dns13.netcologne.de
dns12.netcologne.de
dns14.netcologne.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.mailjet.com include:_spf.onoffice.de include:spf.sendinblue.com include:25186610.spf07.hubspotemail.net include:_spf.atlassian.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=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]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
10 records- docusign=7c1aae51-6bad-454b-83fc-34ff8da188aa
- atlassian-sending-domain-verification=6d6fdd3a-38ee-4bcb-9a0b-6312ae3e3c91
- google-site-verification=2Zic62i9ggz0ACqWALiLhrI6ZLAOOMIFRQy1GdLpQO0
- SPFv=spf1 include:spf.mailjet.com include:_spf.onoffice.de include:spf.sendinblue.com include:25186610.spf07.hubspotemail.net include:_spf.atlassian.net -all
- apple-domain-verification=jlCRi1yhVARyVtEE-mMSfnikwJ3ySggGgLxXcrOF2wI
- google-site-verification=6o8mP1Mofh-gAkNZEyd7lTykQwohxSfxFlxzeooU5mM
- Sendinblue-code:c58b78e60cc2d86d0547d22a24134ec5
- apple-domain-verification=e0XTp2OSvZHAKzmj
- atlassian-domain-verification=YMrlKbwA6Yje0OndmplmjE9lshUH9D35HDpOcGgZh87Zzro2aDNytyufayJTaRJl
- seatsurfing-verification=50f18ee8-109a-42db-b7b4-6f726f612e0d
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