onoff-group.de

Valid Email Server
Domain Lookup › onoff-group.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
onoff-group.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-25 03:39:54 UTC · ↺ Refresh

MX Hostnames

  • onoffgroup-de01c.mail.protection.outlook.com

MX Priorities

  • onoffgroup-de01c.mail.protection.outlook.com: 0

A / AAAA Records

  • 85.13.130.211 ↩ dd10534.kasserver.com

Mail Server IPs

  • 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
  • 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com

SOA Record

Raw SOA ns5.kasserver.com hostmaster.kasserver.com 2510131046 28800 7200 1209600 7200
Primary NS (mname)
ns5.kasserver.com
Admin Email (rname)
hostmaster@kasserver.com
Serial
2510131046
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s

Nameservers (NS)

ns5.kasserver.com
ns6.kasserver.com

SPF Record

✓ Strict (-all)
v=spf1 mx a:mail.onoff-group.de ip4:217.7.144.150 include:_spf.google.com include:spf.mailjet.com include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✗ None detected

No 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

5 records
  • +aFmtWX7kwvnuJBjPSCdtu2A5ZsZMKQjlKq3F8McwGCRjNkzDgiUuGpDuuM+D1K+gT1pHz8rgcci1EG1dfOGZQ==
  • MS=ms33804545
  • MS=ms26855326
  • google-site-verification=7xEZkMHzfealfD56eBvcEQn-_vTe5-7RgqoyLQXLzeg
  • SPFv=spf1 mx a:mail.onoff-group.de ip4:217.7.144.150 include:_spf.google.com include:spf.mailjet.com include:spf.protection.outlook.com -all
Full email verification for onoff-group.de

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits