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Dev tools · alternatives · 2026

24 alternatives to I Made a Node.js SMTP Email Verification Library

Hey HN, Email list validation is important for reducing bounce rates, improving deliverability, enhancing security, and, of course, saving on service and/or infrastructure resources. Inspired by the email-verify project, the team at Pingback, created the ping-email library to perform this task for Pingback clients – and made it available as open source for other projects that need similar verification. If you need to validate emails, I made this lib with Node.js and TypeScript, just install it with `npm install ping-email`. Furthermore, I would love feedback on how the project turned out.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. I Made a Node.js SMTP Email Verification Library launched in 2024; newer entries below may have overtaken it.

  1. 1

    Remove hard bounces and email traps from your email lists

    2016 · emaillistverify.com · its alternatives →

  2. 2
    Proofy▲181

    Quickly validate and verify your email lists.

    2016 · proofy.io · its alternatives →

  3. 3

    Verify your email list and improve deliverability ✅

    2018 · voilanorbert.com · its alternatives →

  4. 4

    The first free and accurate email verification service

    2020 · gmass.co · its alternatives →

  5. 5

    ✔️ Send user verification emails with NodeJS and MongoDB - GitHub - whitef0x0/node-email-verification: ✔️ Send user verification emails with NodeJS and MongoDB

    2014 · github.com · its alternatives →

  6. 6

    Keep your lists clean with email validation tool

    2025 · mailerio.com · its alternatives →

  7. 7
    Weecheck▲120

    Validate email addresses and avoid bounces

    2021 · its alternatives →

  8. 8

    Simple email validation API for a $39 lifetime license

    2021 · cloudlyn.com · its alternatives →

  9. 9

    Bulk validate emails in Google Sheets

    2022 · workspace.google.com · its alternatives →

  10. 10

    Validate and clear your email lists from bounces 💌

    2019 · mailcheck.co · its alternatives →

  11. 11

    Check email lists with syntax, MX, and SMTP verification

    Jun 2026 · apify.com · its alternatives →

  12. 12

    A real customer starts with a real email

    2017 · weblegit.com · its alternatives →

  13. 13

    Verify your email list before you hit send

    Aug 2026 · mailercloud.com · its alternatives →

  14. 14

    Clean your existing email lists with mailbox verification

    2019 · app.mailgun.com · its alternatives →

  15. 15

    Email Verification Tool

    2025 · safetymails.com · its alternatives →

  16. 16

    I built Sniffmail because I was tired of fake and disposable emails getting through signup forms on every project I shipped. It verifies email addresses at the SMTP level without sending an email. One API call returns whether the mailbox exists, is disposable, has a full inbox, or is a catch-all domain. Install with npm install sniffmail, call validateEmail("[email protected]"), get a verdict. REST API available for non-Node stacks. What it checks: SMTP mailbox existence (connects to the mail server, confirms the address is real), disposable/temporary email detection (Mailinator, 10…

    Mar 2026 · sniffmail.io · its alternatives →

  17. 17

    Hi HN – Kristyna here. I built this free, online email validator and would love to share it with you. What it checks: - Syntax – Confirms correct proper email format. - Domain & DNS – Verifies the domain exists and resolves. - MX records – Verifies the domain can receive mail. - SMTP handshake (optional) – Checks the mail server accepts the recipient (no message is sent). - Disposable domains – Flags temporary inbox providers that can hurt deliverability lists. - Common typos – Catches mistakes and suggests fixes. How it works: Paste an email > click Validate > get a clear result with…

    Feb 2026 · sidemail.io · its alternatives →

  18. 18

    Cleanmails - Unlimited email verification

    Jan 2026 · its alternatives →

  19. 19

    Reliable email validation for clean lists and deliverability

    2025 · emailstuff.io · its alternatives →

  20. 20

    Verify an email address typed in your form in real-time

    2020 · app.thechecker.co · its alternatives →

  21. 21

    Instant Email Verification – Real, Reachable & Secure

    2025 · validate.email · its alternatives →

  22. 22

    Email Verification Service

    2024 · its alternatives →

  23. 23

    Stop Free Trial Abuse with Advanced Email Verification

    2025 · mail-check.tech · its alternatives →

  24. 24

    Catch fake emails before they signup

    2025 · verifyright.io · its alternatives →

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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 →