Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hotel-petersen.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 18:14:03 UTC · ↺ Refresh
MX Hostnames
- hotelpetersen-de01c.mail.protection.outlook.com
MX Priorities
- hotelpetersen-de01c.mail.protection.outlook.com: 0
A / AAAA Records
- 213.133.104.11 ↩ www11.your-server.de
Mail Server IPs
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.your-server.de postmaster.your-server.de 2025012900 86400 1800 3600000 86400
Primary NS (mname)
ns1.your-server.de
Admin Email (rname)
postmaster@your-server.de
Serial
2025012900
Refresh
86400s
Retry
1800s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns3.second-ns.de
ns1.your-server.de
ns.second-ns.com
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
✗ 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
2 records- SPFv=spf1 include:spf.protection.outlook.com -all
- openai-domain-verification=dv-uZF9nJcIyOzl2vImbv4P5FDK
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