Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
erbenimmo.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 06:56:17 UTC · ↺ Refresh
MX Hostnames
- mx2.onoffice.de
- mx3.onoffice.de
- mx1.onoffice.de
MX Priorities
- mx2.onoffice.de: 10
- mx1.onoffice.de: 30
- mx3.onoffice.de: 20
A / AAAA Records
- 185.175.196.76 (no PTR)
- 2a00:1c98:60:1100::d41a:4965 (no PTR)
Mail Server IPs
- 95.130.253.71 ↩ mx2.onoffice.de
- 95.130.253.60 ↩ mx1.onoffice.de
- 95.130.253.56 ↩ mx3.onoffice.de
SOA Record
Raw SOA
nsa2.schlundtech.de domains.onoffice.de 2025040901 43200 7200 1209600 86400
Primary NS (mname)
nsa2.schlundtech.de
Admin Email (rname)
domains@onoffice.de
Serial
2025040901
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
nsc2.schlundtech.de
nsb2.schlundtech.de
nsd2.schlundtech.de
nsa2.schlundtech.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:onoffice.de ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate 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
1 record- SPFv=spf1 a mx include:onoffice.de ~all
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