Outis is a tool that combats spam by sending fake 'user unknown' bounce emails back to senders, tricking them into thinking the recipient address doesn't exist. The creator revived the concept (originally from 1998-1999) specifically to counter the rise of AI-generated automated spam emails that expect replies.
Background
AI-generated spam has become increasingly prevalent, with bots sending mass automated emails expecting responses. Traditional email filtering struggles to keep up with sophisticated AI-crafted spam messages.
- Source
- Lobsters
- Published
- Oct 1, 2026 at 11:54 PM
- Score
- 5.0 / 10