social/mass_mailing_event_registration_exclude/security/ir.model.access.csv

1	id	name	model_id:id	group_id:id	perm_read	perm_write	perm_create	perm_unlink
2	access_event_registration_state_group_user	event_registration_state group_user	model_event_registration_state	base.group_user	1	0	0	0