PROD/SBX: S/MIME Certificate Renewal and OTE Auth (SBX)
We would like to inform you that today the S/MIME certificate has been renewed. This certificate is used for encrypting messages sent by participants to the designated address in both production and test environments.
Please note that the new certificate runs in parallel with the previous certificate, which expires on 6 June 2026.
If this communication applies to you, we recommend switching to the new S/MIME certificate as soon as possible.
This change affects participants using automated communication with CS OTE, particularly via SOAP web services, WS-Security, response signature validation, and TLS authentication in the direction OTE → participant.
To ensure uninterrupted automated communication with CS OTE, we recommend verifying that the new certificate is trusted and correctly processed within your systems.
All necessary information regarding certificates can be found here:
https://www.ote-cr.cz/en/registration-and-agreements/access-to-cs-ote/pc-configuration
