Stable

First stable release.
Mailserver has to be setup with the database design from Thomas Leister -> https://thomas-leister.de/sicherer-mailserver-dovecot-postfix-virtuellen-benutzern-mysql-ubuntu-server-xenial/

You will have to enable SSL support for MySQL and allow the client to conect to the Server. In his tutorial the user vmail only can connect form localhost.