hi.. i can resolve them setting de following parameters: in dovecot.conf: - coment mail_uid and mail_gid parameters: #mail_uid= 72940 #mail_gid= 72941 in dovecot-ldap.conf: - add the foollowing parameters in "user_attrs": user_attrs= .....,=uid=72940,gid=72941 thanks! -- Salu2 ;)