i've tried changing samba domain join from RODC to DC. by these way my first problem seem to solved, but i cannot go on with openchange provision because it expects local samba is "master".. here's the error message:
Add Exchange attributes to Samba schema schema_data_add: we are not master: reject request [!] error while provisioning the Exchange schema classes (53): schema_data_add: we are not master: reject request [+] Step 3: Exchange Samba with Exchange configuration objects [!] error while provisioning the Exchange configuration objects (16): objectclass msExchOrganizationContainer is not a valid objectClass in schema thanks, daniele. -- users@sogo.nu https://inverse.ca/sogo/lists
