Dear, we have got a problem on an our Debian 9.3 server. Basically, when we setup a smarthost on the ispconfig mail config options, with the smtp auth data, they are not write down on the postfix main config file. Also the file sasl_passwd is not written. Enabling debug mode on the cron, no error are outputted, so become pretty hard to debug what happen here. Any clue, or starting point to what to checkout? Thank you.