ok-puls.cz

Valid Email Server
Domain Lookup › ok-puls.cz

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ok-puls.cz
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-14 04:49:26 UTC · ↺ Refresh

MX Hostnames

  • okpuls-cz0e.mail.protection.outlook.com
  • bmx.cz.net

MX Priorities

  • okpuls-cz0e.mail.protection.outlook.com: 0
  • bmx.cz.net: 100

A / AAAA Records

  • 85.13.145.127 ↩ dd14404.kasserver.com

Mail Server IPs

  • 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
  • 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
  • 193.85.201.247 ↩ mailx.terminal.cz

SOA Record

Raw SOA ns.grdns.cz admin.grdns.cz 2026031101 3600 1800 2592000 3600
Primary NS (mname)
ns.grdns.cz
Admin Email (rname)
admin@grdns.cz
Serial
2026031101
Refresh
3600s
Retry
1800s
Expire
2592000s
Minimum TTL
3600s

Nameservers (NS)

ns.grdns.cz
ns.grdns.it

SPF Record

✓ Strict (-all)
v=spf1 mx a:mail.ok-puls.cz a:posta.ok-puls.cz include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ 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 mx a:mail.ok-puls.cz a:posta.ok-puls.cz include:spf.protection.outlook.com -all
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for ok-puls.cz

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits