Alternatives

Products that do what Kickbox does

Quickly validate and verify your email lists.

1. 1
   Email List Verify▲340

   Remove hard bounces and email traps from your email lists

   2016

2. 2
   Email Bounce Checker from BlockSurvey▲98

   Privacy-focused email bounce checker. No ads, no trackers.

   2022

3. 3
   BounceBan▲123

   Unlimited free email verify, works great for accept-all

   2022

4. 4
   Weecheck▲120

   Validate email addresses and avoid bounces

   2021

5. 5
   Weecheck v2▲100

   Simple email verification to improve deliverability

   2022

6. 6AR
   ApproveAPI – Real-Time user approvals via email, SMS, and push▲183

   2019 · approveapi.com

7. 7
   Turing Email▲112

   Making checking your inbox as fun as using Slack

   2015

8. 8
   Bulk Email Validation▲80

   Clean your existing email lists with mailbox verification

   2019

9. 9
   Proofy▲181

   Quickly validate and verify your email lists.

   2016

10. 10
    Briteverify▲117

    Validate & verify your email addresses before you send.

    2015

11. 11
    Bouncebuster▲162

    Real-time email verifier

    2021

12. 12
    KleanMail Free Email Verifier▲177

    Emails inboxed, always.

    2022

13. 13
    Magic▲165

    Fills in signup forms with just an email address

    2015

14. 14
    ZeroBounce▲163

    Email verification platform, 99%+ accurate

    2018

15. 15AS
    A site to help you validate ideas in bulk▲93

    Hi HN! I made a really quick web app to help people validate their ideas. The app is a simple landing page builder, but every page includes a really simple Yes/No "Are You Interested?" poll. Every vote is recorded and tracked, and if they click yes they are brought to a page where they can submit an email. This makes validating ideas super easy because you can post your link to different communities and get statistically significant results as well as build an email list. Given an hour, you could easily create 50 different landing pages and be able to validate your ideas in bulk. The…

    2020

16. 16
    MailerCheck 2.0▲145

    All-in-one email deliverability platform for businesses

    2023

17. 17
    Startup Validator▲252

    Find out if your startup's name is available on the web!

    2015

18. 18
    Bulk Email Verifier & Checker▲115

    The top tool for checking mail address authenticity

    2023

19. 19
    Bitbounce▲263

    Email paywall

    2017

20. 20
    MailCheck▲49

    Stop Free Trial Abuse with Advanced Email Verification

    2025

21. 21
    Emailkick▲182

    Simple email designer and API for AWS SES users

    2022

22. 22NS
    NBox – Sign up anywhere without giving your email address▲286

    2017 · nbox.notif.me

23. 23
    EmailAwesome▲39

    Validate emails, less bounces & spam reports for 10X less

    2024

24. 24
    Clearout 2.0▲103

    98%+ accurate real-time & bulk email verification services

    2020

Ranked by how close each launch is in meaning, then by votes. Refine with a description →