Well, yes. But if I send an email to a gmail address I know what I am doing and want it delivered. When I send such email to a custom domain used by a Google o

Well, yes. But if I send an email to a gmail address I know what I am doing and want it delivered. When I send such email to a custom domain used by a Google office customer it's even worse. Then their admin gets to see my mail (not sure how much detail of it) in the admin interface.