Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
koerfer-dach.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 06:23:59 UTC · ↺ Refresh
MX Hostnames
- koerferdach-de01i.mail.protection.outlook.de
MX Priorities
- koerferdach-de01i.mail.protection.outlook.de: 10
A / AAAA Records
- 217.160.0.121 ↩ 217-160-0-121.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::25c ↩ 2001-08d8-100f-f000-0000-0000-0000-025c.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1072.ui-dns.com hostmaster.1und1.de 2017060416 28800 7200 604800 300
Primary NS (mname)
ns1072.ui-dns.com
Admin Email (rname)
hostmaster@1und1.de
Serial
2017060416
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1072.ui-dns.biz
ns1072.ui-dns.org
ns1072.ui-dns.de
ns1072.ui-dns.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.de -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- SPFv=spf1 include:spf.protection.outlook.de -all
- MS=ms45155834
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