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Privacy policy

This is a translation for convenience. The Czech version is binding.

Controller

MERUS IT, s.r.o., Pražská 99, 370 04 České Budějovice, Czech Republic, Company ID 04001702, registered with the Regional Court in České Budějovice, file C 23700.
Contact: info@cistymail.cz, +420 777 324 066.

Forms on this website

From the contact form and the free trial form we process the data you enter: name, e-mail, phone, domain and message text.

  • Purpose: answering your enquiry, setting up the trial and negotiating a contract.
  • Legal basis: steps taken at your request prior to entering into a contract (Art. 6(1)(b) GDPR).
  • Retention: for the duration of handling the enquiry and the subsequent negotiation. If no contract is concluded, we delete the data within 1 year at the latest.
  • Recipients: we do not pass the data to third parties unless required by law.

Domain test

The domain test only reads public DNS records. We do not store the domain entered or the test result.

Visiting the website

The web server keeps technical access logs (IP address, time, requested page, browser type). We use them only to keep the website secure and running, based on legitimate interest (Art. 6(1)(f) GDPR), and delete them after a short time. To protect the forms and the domain test from abuse we keep a hash of the IP address for a short time (24 hours at most); the original address cannot be derived from it.

The website uses no cookies, no analytics or advertising tools and loads no content from third-party servers.

Čistý mail customers

When providing the anti-spam service we process the customer's e-mails and related data (sender and recipient addresses, delivery logs) as a processor under Art. 28 GDPR, solely for filtering and delivering mail and within the scope of the contract with the customer. All of the service's infrastructure (servers and backups) is located in the European Union and we do not transfer data outside the EU.

Your rights

You have the right to access your data, have it corrected or erased, restrict processing, data portability and the right to object. Just write to the contact above. You also have the right to lodge a complaint with the Czech Office for Personal Data Protection (uoou.gov.cz).

Effective from 10 November 2026.