Please be aware that the CS OTE will renew electronic seals on August 29, 2023, at 3:00 PM. PostSignum Qualified CA 4 issues renewed Seals (certificates). You must keep this authority on your list of trusted authorities in case you decide to check our electronic seal.

This change applies only to output messages sent from CS OTE via email and automatic communication.

This website publishes all brand-new electronic seals.