seznam.cz

Valid Email Server
Domain Lookup › seznam.cz

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
seznam.cz
Yes
✓ Yes
Unknown
No
Yes
⚠ Yes
No
No

Checked via [email protected] · 2026-03-17 19:35:09 UTC · ↺ Refresh

MX Hostnames

  • mx1.seznam.cz
  • mx2.seznam.cz

MX Priorities

  • mx1.seznam.cz: 10
  • mx2.seznam.cz: 20

A / AAAA Records

  • 77.75.79.222 ↩ www.seznam.cz
  • 77.75.77.222 ↩ www.seznam.cz
  • 2a02:598:a::79:222 ↩ www.seznam.cz
  • 2a02:598:2::1222 ↩ www.seznam.cz

Mail Server IPs

  • 77.75.77.90 ↩ mx1.seznam.cz
  • 2a02:598:2::1090 ↩ mx1.seznam.cz
  • 77.75.77.42 ↩ mx2.seznam.cz
  • 2a02:598:2::1042 ↩ mx2.seznam.cz

SOA Record

Raw SOA ans.seznam.cz hostmaster.seznam.cz 1773748991 900 300 604800 300
Primary NS (mname)
ans.seznam.cz
Admin Email (rname)
hostmaster@seznam.cz
Serial
1773748991
Refresh
900s
Retry
300s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ans.seznam.cz
ams.seznam.cz

SPF Record

✓ Soft Fail (~all)
v=spf1 mx ip4:77.75.78.0/23 ip4:77.75.76.0/23 ip6:2a02:598::/32 ?all
📊 DNS lookups: 1/10
? Neutral (?all) — no enforcement

DMARC Record

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

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

6 records
  • google-site-verification=e3xWgDmkjVzej4PsMZgvtPhUiJLFAK5rdx-zdmeBYjg
  • google-site-verification=v2WaAYaKuekbWHJu29R0b1IbBY2-pInEXYWbh_1_V2M
  • SPFv=spf1 mx ip4:77.75.78.0/23 ip4:77.75.76.0/23 ip6:2a02:598::/32 ?all
  • facebook-domain-verification=hp0jkbs2ikx5c9hv3r0cwcyvi2c2jm
  • yahoo-verification-key=rIVkIfpCmZr9Wlk/ixIMiDw3Gdv8aIr0gxXkfzWe6+Y=
  • google-site-verification=a9t5IHxxjmCtKh9OOuqIGQBo1JUNQC1eEzhCY7x2Lts
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