Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fs-winter.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 21:46:20 UTC · ↺ Refresh
MX Hostnames
- fswinter-de0e.mail.protection.outlook.com
MX Priorities
- fswinter-de0e.mail.protection.outlook.com: 10
A / AAAA Records
- 217.160.0.35 ↩ 217-160-0-35.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::29c ↩ 2001-08d8-100f-f000-0000-0000-0000-029c.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1117.ui-dns.de hostmaster.1und1.com 2017060107 28800 7200 604800 600
Primary NS (mname)
ns1117.ui-dns.de
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060107
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1029.ui-dns.com
ns1027.ui-dns.biz
ns1117.ui-dns.de
ns1062.ui-dns.org
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
2 records- v=verifydomain MS=9874857
- SPFv=spf1 include:spf.protection.outlook.com -all
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