ckts.de

Valid Email Server
Domain Lookup › ckts.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ckts.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-24 17:06:21 UTC · ↺ Refresh

MX Hostnames

  • ckts-de.mail.protection.outlook.com

MX Priorities

  • ckts-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 217.160.0.116 ↩ 217-160-0-116.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::2c1 ↩ 2001-08d8-100f-f000-0000-0000-0000-02c1.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
  • 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
  • 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com

SOA Record

Raw SOA ns1027.ui-dns.de hostmaster.1und1.com 2017060113 28800 7200 604800 600
Primary NS (mname)
ns1027.ui-dns.de
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060113
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1093.ui-dns.org
ns1027.ui-dns.de
ns1052.ui-dns.biz
ns1075.ui-dns.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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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