addons/project_mailgate/security/ir.model.access.csv

   1 "id","name","model_id:id","group_id:id","perm_read","perm_write","perm_create","perm_unlink"
   2 "access_mailgate_message_project_manager","project.mailgate.message.manager","mail_gateway.model_mailgate_message","project.group_project_manager",1,1,1,0
   3 "access_mailgate_message_project_user","project.mailgate.message.user","mail_gateway.model_mailgate_message","project.group_project_user",1,1,1,0