This is not related to Thunderbird Changed package to postfix. I'm not sure what more info the reporter can give, I haven't looked in the logs below but all info should be in there, also the following should help (not in English so i can be sure what it says:
ErrorMessage: ErrorMessage: Unterprozess installiertes post-installation-Skript gab den Fehlerwert 1 zurück I'm fairly sure the logs are going to be the same lang. ** Package changed: thunderbird (Ubuntu) => postfix (Ubuntu) -- package postfix 2.6.5-3 failed to install/upgrade: https://bugs.launchpad.net/bugs/529451 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs