A feature that replies to every incoming email with a "not interested" message until the sender stops, essentially "annoying" the spammer back.
These services typically offer a real-time temporary inbox where you can receive and read messages instantly. AnnoyMail
AnnoyMail is a relic of a wilder, less secure internet. While it might provide a quick laugh if the email actually lands in the recipient's inbox, the risks regarding privacy and the high likelihood of being flagged as spam make it difficult to recommend. A feature that replies to every incoming email
Before hitting send, ask: Can the recipient understand and act on this in 5 seconds? If no, rewrite. AnnoyMail