kopano webapp active directory authentication?

I have installed kopano core, deskapp, webapp, webmeetings, files and mdm on ubuntu server. Kopano-server running well. I don’t want to install LDAP server. Cause I wish my active directory domain users will access kopano-webapp. How can I do it? Any one help me.

See the manual: https://documentation.kopano.io/kopanocore_administrator_manual/configure_kc_components.html#configure-kc-active-directory-integration

We use Apache2 on Linux in combination with libapache2-mod-auth-ntlm-winbind to enable SSO.

This post is deleted!