How to deactivate the email chatter checkbox for the customer.
The working version is odoo is 9 community.
When creating a new message in the chatter, there always appears a checkbox enabled, I would like to know how to unchecked the mail checkbox of the partner. If I modify the view, it seems that it is a widget called
<field name = "message_ids" widget = "mail_thread" />.
I just want not checked the checkbox of the partner's email