spamv...@googlemail.com: > thx Wietse > > trying it as user postfix i get (Can't contact LDAP server) > > hmm strange
You have some incorrect file permission, or some "security" software such as SeLinux or AppArmor is mis-configured. Try: # service selinux stop # service apparmor stop etc. If that is not the problem, try: $ strace -o tempfile postmap ... and look for EACCES etc. errors in the strace output. etc. Wietse