The thing that bothers me most about getting these bounced e-mails that claim to have been sent by different (nonexistent) addresses at unreality.net is that, if it keeps up, a number of people may start blocking my domain simply by default. If I ever, coincidentally, want or need to send these people a genuine e-mail, they (or their computer) will just assume that’s spam, too. And there’s really not a damn thing I can do about it.