Hi ! Great tutorial, .... all works as charm on test server... (I have openSuse 12.3 x64) http://www.howtoforge.com/perfect-server-opensuse-12.2-x86_64-apache2-dovecot-ispconfig-3 but... I have existing LDAP server (OpenLDAP on Debian 6.0.8) and I need that user authenticate using LDAP entries to access (create) mail.... users already exist in LDAP so on first access mailbox must be created, I don't have to create users (but I can) since LDAP entries are syncronized fom/to other source, ... I'm LDAP admin.... .... on Exchange, kolab etc. I can use LDAP entries as global addressbook.... can It be done on openSuse (with LDAP on another server)?!? I try to adopt this http://www.postfix.org/LDAP_README.html into "Perfect server" but without success.... Now In use are MS Exchange 2003 which must be retired and replaced with OpenSource (Linux) ...