centrum.sk

Valid Email Server
Domain Lookup › centrum.sk

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
centrum.sk
Yes
✓ Yes
Unknown
No
Yes
⚠ Yes
No
No

Checked via [email protected] · 2026-03-17 22:56:58 UTC · ↺ Refresh

MX Hostnames

  • nm-sk-20mx1.eco-mx.cz
  • nm-sk-10mx2.eco-mx.cz
  • nm-sk-10mx1.eco-mx.cz
  • nm-sk-20mx2.eco-mx.cz

MX Priorities

  • nm-sk-20mx2.eco-mx.cz: 20
  • nm-sk-10mx1.eco-mx.cz: 10
  • nm-sk-10mx2.eco-mx.cz: 10
  • nm-sk-20mx1.eco-mx.cz: 20

A / AAAA Records

  • 104.26.12.69 (no PTR)
  • 104.26.13.69 (no PTR)
  • 172.67.71.124 (no PTR)
  • 2606:4700:20::ac43:477c (no PTR)
  • 2606:4700:20::681a:c45 (no PTR)
  • 2606:4700:20::681a:d45 (no PTR)

Mail Server IPs

  • 46.255.225.8 (no PTR)
  • 46.255.227.8 (no PTR)

SOA Record

Raw SOA chuck.ns.cloudflare.com dns.cloudflare.com 2398779647 10000 2400 604800 1800
Primary NS (mname)
chuck.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398779647
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

erin.ns.cloudflare.com
chuck.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 redirect=_spf.centrum.cz
📊 DNS lookups: 1/10

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 redirect=_spf.centrum.cz
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