Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
krea-schulzentrum.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 19:51:37 UTC · ↺ Refresh
MX Hostnames
- kreaschulzentrum-de01b.mail.protection.outlook.com
MX Priorities
- kreaschulzentrum-de01b.mail.protection.outlook.com: 10
A / AAAA Records
- 81.169.145.64 ↩ w00.rzone.de
- 2a01:238:20a:202:1064:: ↩ w00.rzone.de
Mail Server IPs
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
shades05.rzone.de hostmaster.strato-rz.de 2020050869 86400 7200 604800 300
Primary NS (mname)
shades05.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050869
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks16.rzone.de
shades05.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:94.130.183.12 ip6:2a01:4f8:1c0c:4305::/64 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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- SPFv=spf1 ip4:94.130.183.12 ip6:2a01:4f8:1c0c:4305::/64 include:spf.protection.outlook.com -all
- apple-domain-verification=n2SYz9DewaCaeqXt
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