Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
georgens-schule.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 09:35:47 UTC · ↺ Refresh
MX Hostnames
- georgensschule-de02b.mail.protection.outlook.com
MX Priorities
- georgensschule-de02b.mail.protection.outlook.com: 10
A / AAAA Records
- 87.106.171.22 ↩ mail.zimbert.de
Mail Server IPs
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
SOA Record
Raw SOA
nsa4.schlundtech.de nic.zimmerit.de 2024121201 43200 7200 1209600 86400
Primary NS (mname)
nsa4.schlundtech.de
Admin Email (rname)
nic@zimmerit.de
Serial
2024121201
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
nsc4.schlundtech.de
nsd4.schlundtech.de
nsa4.schlundtech.de
nsb4.schlundtech.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
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms61913887
- SPFv=spf1 include:spf.protection.outlook.com -all
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