I have my catch-all option set to return all e-mail with an unknown e-mail sender from my xx.com account. For some reason, lately I have seen several of these type e-mails slip through to my mailbox at [email protected]. My question is: What other step(s) might I take to cause the sender of this unwanted message to have it immediately bounced back to them rather than ending up marked as "SPAM" and still ending up in my mail account.
