Hi Bernd, > we want to connect Thunderbird with LDAP to have access to the mailaddresses of all teachers and pupils. > Is this possible? Where can I find a how to? You cann add a new address book of type LDAP in the addressbook view. If you want autocompletion, you can choose one LDAP account in the general settings. I assume that by Thunderbird, you mean Debian's branded version called Icedove, which exists in Skolelinux. Cheers, Nik