Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stb-irrgang.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 22:21:31 UTC · ↺ Refresh
MX Hostnames
- stbirrgang-de0i.mail.protection.outlook.com
MX Priorities
- stbirrgang-de0i.mail.protection.outlook.com: 0
A / AAAA Records
- 85.13.141.247 ↩ dd34200.kasserver.com
Mail Server IPs
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
ns5.kasserver.com hostmaster.kasserver.com 2510271311 28800 7200 1209600 7200
Primary NS (mname)
ns5.kasserver.com
Admin Email (rname)
hostmaster@kasserver.com
Serial
2510271311
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s
Nameservers (NS)
a-dns-service.de
ns6.kasserver.com
ns3.kas-dns-server.de
ns5.kasserver.com
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +ip4:46.182.146.187 +ip4:46.182.146.190 +ip4:193.27.50.76 +ip4:193.27.50.77 +ip4:109.237.142.224/27 include:spf.protection.outlook.com include:datevnet._spf.datev.de -all
📊 DNS lookups: 4/10
✓ 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: 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
1 record- SPFv=spf1 +a +mx +ip4:46.182.146.187 +ip4:46.182.146.190 +ip4:193.27.50.76 +ip4:193.27.50.77 +ip4:109.237.142.224/27 include:spf.protection.outlook.com include:datevnet._spf.datev.de -all
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