Hi, I have a debian 8+ISPC3.1 combo, more or less working well. The email system was working too, except I had to remove some newly added (by me) rbls, because it rejected all incoming mails. After I removed these rbls, I got it working again. So, I decided to create mailman mailing lists. Mailman installed prior to ispconfig, followed the perferct server howto. After some unsuccessful attempts to get it work, I found that, the MAIL section under the Server config almost wiped completely. I wrote almost, because only the combo box has values, nothing else. All input fields are empty, wiped out. So, it seems I have a dangerous situation. Of course, I do not remember the default values Maildir Path is empty. Invalid maildir path. Homedir Path is empty. Invalid homedir path. Mailuser uid must be >= 2000 Mailuser gid must be >= 2000 Mailuser Name is empty. Invalid mailuser name. Mailuser Group is empty. Invalid mailuser group name. Uid-mapping cannot be changed if there are already mail users. So, could you give me a hint, how to bring it to life, without scr*wing the server? Thanks, István UPDATE: I also messed (played) with Global whitelist, if it does matter, seems working fine (senders whitelisted, spam filtered).