I'm using a self-signed server certificate. So I imported the CA of this certificate into my local CA store (see also bug#342958). When trying to connect now, I still get to see the error message: There was a problem while trying to connect mail@eliasprobst.eu - The SSL/TLS certificate received from server was not signed by a trusted certificate authority Could not connect mail@eliasprobst.eu. There was a network error, check your connection So this looks to me like the custom CA cert isn't read and/or passed to Telepathy/mission-control/gabble. The account is using gabble/jabber. Running all latest KF5 + KTP (frameworks) components from git + Qt 5.4.0. Versions of other components: net-im/telepathy-mission-control-5.16.3 net-libs/telepathy-glib-0.24.1 net-libs/telepathy-qt-0.9.5 net-voip/telepathy-gabble-0.18.3 Tried to get more information using ktp-debugger and running 'ktp-auth-handler --persist --debug', but none of them showed any useful/relevant information.
Thank you for the bug report. As this report hasn't seen any changes in 5 years or more, we ask if you can please confirm that the issue still persists. If this bug is no longer persisting or relevant please change the status to resolved.
Dear user, unfortunately Telepathy is no longer maintained. Please migrate to another solution, e.g. for Jabber a possibility is Kaidan, for Matrix a candidate is NeoChat.