Custom root certificates ------------------------- In case you have installed wire-server using certificates signed using a custom root CA (certificate authority) which is not trusted by default by browsers and systems, then you need to ensure Wire-clients (on Android, Desktop, iOS, and the Web) trust this root certificate. The following details the procedure for Desktop and Web on Linux/Windows: https://thomas-leister.de/en/how-to-import-ca-root-certificate/ For Android and iOS, if you know how to trust custom certificates, please let use know so we can update this documentation.