Be careful not to even open it or depending on email client view it in preview mode, as either can trigger a remote access to say your email address is good. If and when that happens you can be assured of more s.p.a.m. So I would say that you should consider an anti-spam application that deletes the s.p.a.m from server level, that way you aren’t downloading it to your inbox/s.p.a.m folder.