Is post.cz a Disposable Email?

Whitelisted

post.cz is a verified legitimate email provider. Emails from this domain are safe to accept.

Details

Status
whitelisted
Added
2025-09-07
Last Checked
2026-06-25
Reason
post.cz

Registration Data

Registrar
REG-SEZNAM
Registered
1997-09-06 (28 years, 9 months)
Expires
2026-10-27

Website Preview

Screenshot of post.cz

Screenshot may be up to 14 days old.

API Playground

Check post.cz programmatically — pick your language, copy, run. No authentication required.

curl https://trashmail-blacklist.org/check/json/post.cz
Live response
Click "Run" to fetch the JSON response for post.cz.

Also available as xml, yaml, or img — replace json in the URL.

DNS Records

MX Records

  • mx1.seznam.cz
  • mx2.seznam.cz

NS Records

  • ams.seznam.cz
  • ans.seznam.cz

SOA Record

  • ans.seznam.cz
  • hostmaster@seznam.cz

A Records

  • 2a02:598:a::78:196
  • 77.75.78.196

TXT Records

  • google-site-verification=0h2ZT7J97HD4O290m5V54lrNwDNUVcceILaRsdoYIm8
  • google-site-verification=ZoRtMh4cw9Hh5LuGzJ1Vtp-WRRqesvpHvgVmhQoFCqA
  • google-site-verification=vnvf6enSXLiqBU5n4Yz1x7UJSNgJn9gRe_5Clonn2QE
  • v=spf1 mx ip4:77.75.78.0/23 ip4:77.75.76.0/23 ip6:2a02:598::/32 ?all
  • yahoo-verification-key=cs/ENKiKUZG6YJeRCUP+inEHKPZL4kTq5/2jiuAzlpU=

Related Domains by Mail Server

2 other domains also use mx1.seznam.cz as their mail server.

Domain Network

Connections between domains, mail servers, nameservers, and shared infrastructure.

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FAQ

Is post.cz a disposable email provider?

No, post.cz is whitelisted and considered a legitimate email provider.

Can I use post.cz for account registration?

post.cz is a legitimate email provider and safe to accept for account registrations.

How can I block disposable emails from post.cz?

Use the Trashmail-Blacklist API to check post.cz before accepting it in your application. Send a GET request to /check/json/post.cz to receive the domain status as JSON. Integrate this check into your signup or contact forms to automatically reject disposable email addresses.

What data is available for post.cz?

post.cz is whitelisted as a legitimate provider. We provide its status, DNS records, and related domains sharing the same mail server.

Block Disposable Emails Automatically

Integrate our free API into your signup flow to detect domains like post.cz before they reach your database.