# postfix, dovecot, roundcube, ...
dn: uid=${LDAP_MAIL_UID},ou=services,dc=${LDAP_ORGANIZATION},dc=${LDAP_EXTENSION}
objectClass: simpleSecurityObject
objectClass: account
objectClass: top
uid: ${LDAP_MAIL_UID}
userPassword: ${LDAP_MAIL_PWD}