odoo/addons/mail/security/ir.model.access.csv

id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
access_mail_message_all,mail.message.all,model_mail_message,,1,0,0,0
access_mail_message_group_user,mail.message.group.user,model_mail_message,base.group_user,1,1,1,1
access_mail_thread,mail.thread,model_mail_thread,base.group_user,1,1,1,0
access_mail_subscription_all,mail.subscription.all,model_mail_subscription,,1,1,1,1
access_mail_notification_all,mail.notification.all,model_mail_notification,,1,1,1,1
access_mail_group,mail.group,model_mail_group,base.group_user,1,1,1,1