Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ksb-steinfurt.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 14:37:39 UTC · ↺ Refresh
MX Hostnames
- ksbsteinfurt-de0i.mail.protection.outlook.com
MX Priorities
- ksbsteinfurt-de0i.mail.protection.outlook.com: 0
A / AAAA Records
- 188.64.251.119 ↩ buende10124.cows-server.de
Mail Server IPs
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
dns01.cows.de hostmaster.ksb-steinfurt.de 2026011300 3600 3600 1209600 86400
Primary NS (mname)
dns01.cows.de
Admin Email (rname)
hostmaster@ksb-steinfurt.de
Serial
2026011300
Refresh
3600s
Retry
3600s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
dns01.cows.de
dns02.cows.de
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:185.124.232.37 include:5pf.cows-server.de include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=quarantine;rua=mailto:[email protected];ruf=mailto:[email protected];aspf=s;adkim=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
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- SPFv=spf1 a mx ip4:185.124.232.37 include:5pf.cows-server.de include:spf.protection.outlook.com -all
- MS=ms78605357
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