AI · alternatives · 2026

24 alternatives to Outis – Fight AI spam by sending fake "user unknown" bounce emails

Fight spam by generating and sending a fake "user unknown" bounce emails - dtonon/outis

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   mailX by mailwarm▲596

   Email deliverability toolkit for humans and AI agents

   May 2026 · themailx.com · its alternatives →

2. 2
   Mailivery▲251

   Reach the inbox, not the spam folder

   2021 · mailivery.io · its alternatives →

3. 3
   Re:scam▲342

   I’m an AI chatbot created to send scammers a message.

   2017 · rescam.org · its alternatives →

4. 4
   Mocke▲519

   Mock email campaigns: know your reply rate without launching

   2025 · mocke.co · its alternatives →

5. 5
   Outboundly.ai▲190

   AI-powered cold outreach platform

   2023 · outboundly.ai · its alternatives →

6. 6
   Begone, Spammer▲69

   Outwit spammers with AI-generated replies

   2023 · begonespammer.com · its alternatives →

7. 7
   Spam-Detecting AI by OpenAI▲73

   Spam detection in the physical world

   2017 · its alternatives →

8. 8
   Mailgo▲469

   AI-powered cold email platform that boosts deliverability

   2025 · mailgo.ai · its alternatives →

9. 9
   Unspam AI▲385

   See how your subscribers read your emails with our AI inbox

   2024 · unspam.email · its alternatives →

10. 10
    You've Got Spam▲309

    A new tool that lets you spam back the spammer

    2020 · youvegotspam.mschfmag.com · its alternatives →

11. 11
    Shieldy▲126

    A zero-config Telegram bot that fights spam in chats

    2018 · t.me · its alternatives →

12. 12
    Bot Butcher▲106

    API for classifying contact form spam

    2023 · botbutcher.com · its alternatives →

13. 13
    Automaticall▲152

    Forward spam callers to an AI and waste their time

    2025 · automaticall.io · its alternatives →

14. 14
    Blastable▲167

    Get More Emails Inboxed Using AI

    2025 · blastable.com · its alternatives →

15. 15
    Mailtrap.io▲125

    Fake SMTP. Send Test Emails without spamming real customers

    2014 · mailtrap.io · its alternatives →

16. 16
    Reginald▲81

    Personal AI that sends passive aggressive emails for you

    2016 · its alternatives →

17. 17
    Make senders work to get into your inbox▲44

    Hi HN :) really excited to share this with you. The one thing AI reliably does is generate noise. Half the tools I see launch are just machines for producing more noise across more channels. And people are starting to see this in the form of emails in their inboxes as spam filters are struggling. There used to be a useful signal in email: the effort a sender put into customizing a message was a rough proxy for how relevant it actually was. AI killed that. Now it's customized slop with the appearance of effort with none of the cost. It is painful that the open internet / open channels…

    Jul 2026 · captchainbox.com · its alternatives →

18. 18
    Bounce.io▲100

    Turning bounced emails into a revenue channel

    2014 · its alternatives →

19. 19
    BounceStrike▲14

    AI-powered real-time email verification API, cheaper price

    2025 · bouncestrike.com · its alternatives →

20. 20
    Outbound▲117

    Generate personalized cold emails with AI

    2021 · tryoutbound.ai · its alternatives →

21. 21
    Bouncer Shield▲85

    Real-time form protection against bad emails

    2024 · usebouncer.com · its alternatives →

22. 22
    Outify▲67

    The AI that turns outbound into revenue

    Jun 2026 · outify.com · its alternatives →

23. 23
    Re:scam▲36

    I’m an AI chatbot created to send scammers a message.

    2018 · rescam.org · its alternatives →

24. 24
    Milo▲11

    Test your AI support agent before your customers do

    24d ago · joinmilo.email · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →