cyfronet.pl

Valid Email Server
Domain Lookup › cyfronet.pl

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cyfronet.pl
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-03 01:59:14 UTC · ↺ Refresh

MX Hostnames

  • fm.cyfronet.pl

MX Priorities

  • fm.cyfronet.pl: 5

A / AAAA Records

  • 149.156.4.133 ↩ www.cyfronet.pl

Mail Server IPs

  • 149.156.2.140 ↩ fm.cyf-kr.edu.pl

SOA Record

Raw SOA nms.cyf-kr.edu.pl hostmaster.cyf-kr.edu.pl 2026040514 86400 7200 604800 86400
Primary NS (mname)
nms.cyf-kr.edu.pl
Admin Email (rname)
hostmaster@cyf-kr.edu.pl
Serial
2026040514
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

nms.cyf-kr.edu.pl
dns.fuw.edu.pl
info.cyf-kr.edu.pl

SPF Record

✓ Strict (-all)
v=spf1 ip4:149.156.2.0/24 ip4:149.156.9.24 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

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

5 records
  • MS=502F5A5EB566772898B57B2F0087A44792BDD8AA
  • ZOOM_verify_g_me_46vQWGtPNoXWNV8Xg
  • google-site-verification=eQHbKXfI17V1pHVlH_UR38qzzAIvKwF4qJO3y2mpiVw
  • mojecertpl-site-verification-ArePcnMcg2ilGDq6ak12UVtE0QLpuWka
  • SPFv=spf1 ip4:149.156.2.0/24 ip4:149.156.9.24 mx -all
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