fairkoeln.de

Valid Email Server
Domain Lookup › fairkoeln.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
fairkoeln.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-25 05:19:37 UTC · ↺ Refresh

MX Hostnames

  • ex.ess-rz.de

MX Priorities

  • ex.ess-rz.de: 10

A / AAAA Records

  • 23.236.62.147 ↩ 147.62.236.23.bc.googleusercontent.com

Mail Server IPs

  • 84.44.164.4 ↩ ex.ess-rz.de
  • 2001:4dd0:f204:100::11:21 ↩ ex.ess-rz.de

SOA Record

Raw SOA ns1.first-ns.de admins.che-solutions.de 2026031200 10800 1800 2419200 3600
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
admins@che-solutions.de
Serial
2026031200
Refresh
10800s
Retry
1800s
Expire
2419200s
Minimum TTL
3600s

Nameservers (NS)

robotns2.second-ns.de
robotns3.second-ns.com
ns1.first-ns.de

SPF Record

✓ Strict (-all)
v=spf1 ip4:84.44.164.0/28 ip6:2001:4dd0:f204::/48 -all
📊 DNS lookups: 0/10
✓ 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

2 records
  • SPFv=spf1 ip4:84.44.164.0/28 ip6:2001:4dd0:f204::/48 -all
  • MS=ms16824973
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