Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
klotzbach-gruppe.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 04:18:06 UTC · ↺ Refresh
MX Hostnames
- klotzbachgruppe-de02c.mail.protection.outlook.com
MX Priorities
- klotzbachgruppe-de02c.mail.protection.outlook.com: 10
A / AAAA Records
- 77.111.240.171 ↩ webcluster44.webpod11-cph3.one.com
- 2a02:2350:5:102:8059:c293:c046:5847 (no PTR)
Mail Server IPs
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
SOA Record
Raw SOA
ns01.one.com hostmaster.one.com 2026030201 14400 3600 1209600 600
Primary NS (mname)
ns01.one.com
Admin Email (rname)
hostmaster@one.com
Serial
2026030201
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
ns02.one.com
ns01.one.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:93.240.84.31 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 ip4:93.240.84.31 include:spf.protection.outlook.com -all
- DxTpvSETCMuSnKpzaiQOaOwYDCuzbmgKKZY1ianWfGHaC8lK6DEsY/4F1PTTE81yIe76qEF6fbd/3XcRyfwrTg==
- MS=ms37155249
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