Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sts-kleinkoschen.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 11:35:37 UTC · ↺ Refresh
MX Hostnames
- stskleinkoschen-de0i.mail.protection.outlook.com
MX Priorities
- stskleinkoschen-de0i.mail.protection.outlook.com: 1
A / AAAA Records
- 217.160.0.88 ↩ 217-160-0-88.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::25f ↩ 2001-08d8-100f-f000-0000-0000-0000-025f.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1120.ui-dns.de hostmaster.1und1.de 2017080322 28800 7200 604800 300
Primary NS (mname)
ns1120.ui-dns.de
Admin Email (rname)
hostmaster@1und1.de
Serial
2017080322
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1120.ui-dns.de
ns1120.ui-dns.com
ns1120.ui-dns.org
ns1120.ui-dns.biz
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
1 record- SPFv=spf1 include:spf.protection.outlook.com -all
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