Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
opp-beratung.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 15:52:41 UTC · ↺ Refresh
MX Hostnames
- oppberatung-com0i.mail.protection.outlook.com
MX Priorities
- oppberatung-com0i.mail.protection.outlook.com: 10
A / AAAA Records
- 81.20.81.138 (no PTR)
Mail Server IPs
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
master.domainkunden.de hostmaster.domainkunden.de 2025120401 28800 7200 604800 300
Primary NS (mname)
master.domainkunden.de
Admin Email (rname)
hostmaster@domainkunden.de
Serial
2025120401
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1.domainkunden.de
ns2.domainkunden.de
SPF Record
✓ Strict (-all)
v=spf1 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
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=ms49765531
- SPFv=spf1 include:spf.protection.outlook.com -all
- google-site-verification=tx811TVxaZOKbpaOMWDI4rV2mb5vADqf0DsXFS1R0aE
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