Domain Overview
DNS: ✓ just now
Checker: ✓ just now
ludwig-fresenius-schulen.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-06-02 00:22:16 UTC · ↺ Refresh
MX Hostnames
- ludwigfreseniusschulen-de01e2b.mail.protection.outlook.com
MX Priorities
- ludwigfreseniusschulen-de01e2b.mail.protection.outlook.com: 10
A / AAAA Records
- 5.9.114.36 ↩ k90c15.meinserver.io
Mail Server IPs
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.timmehosting.de zonemaster.timmehosting.de 2023112101 7200 900 604800 86400
Primary NS (mname)
ns1.timmehosting.de
Admin Email (rname)
zonemaster@timmehosting.de
Serial
2023112101
Refresh
7200s
Retry
900s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns1.timmehosting.de
ns2.timmehosting.de
ns3.timmehosting.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
✗ 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
- MS=ms75531566
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