testserver/testserver_o2b/security/ir.model.access.csv

id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
access_testserver_o2b_mailcatcher,Mailcatcher,testserver_o2b_testserver_o2b,base.group_user,1,1,1,1