==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.84
- Linux/BSD distribution name and version: debian 8 jessie
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):  mysql
- Web server (Apache or Nginx): nginx
- Manage mail accounts with iRedAdmin-Pro? no
- Related log if you're reporting an issue:
====

How to integrate mysql backend if I have customer with own AD server.
- What do I need to sync? (Mailbox,alias,group)
- How to secure the connection?
- Do iredapd,dovecot and postfix support hybrid manage and althen mailbox?
- How can I manage external AD server with hybrid backend?

Or I just make another server to sync AD?

Thank you
Thank you