On 12/04/2017 09:01 AM, Aki Tuomi wrote: > It seems you'd have to configure OpenLDAP backend for Samba to have LDAP. No. As far as I know, samba in AD mode always does ldap. (AD *is* just that: microsoft-ized ldap) And you should configure dovecot simply as a regular ldap client. That's what we do, anyway. MJ