Sorry if this is posted again, I tried to check several solutions posted here, regarding problems with mailman and ISPConfig3 with no luck and especially I am unable to pinpoint where the issue is. I have a working installation (v3.0.5p9) which works perfectly for serving sites and multiple email domains (it is with nginx, postfix and dovecot on Ubuntu 14.04). Mailman was installed as per the how to and never used until now. I'm trying to create a new list (the first one) for one already working email domain. The list is created through the ISPConfig admin interface, but no email is coming to the administrator. Can you point me on any place I can check about what is happening so I can maybe provide more info on this (or understood what is going wrong with the mailman integration)? Thanks in advance and sorry if this is already resolved, although my system has nothing else than the how to installation and it is working regarding sites and email domains.