# FGRibreau/mailchecker

:mailbox: Cross-language temporary (disposable/throwaway) email detection library. Covers 55 734+ fake email providers.

Repository: https://github.com/FGRibreau/mailchecker
Canonical: https://ross.abutalabs.com/products/mailchecker
Homepage: https://twitter.com/FGRibreau
Language: PHP
License: MIT
License Family: permissive
Topics: email-validation, email-verification, email
Last push: 2026-08-26T08:51:04+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 4930, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1905, forks 309 (observed 2026-08-28T04:05:51.873163+00:00)

## What it is
MailChecker is a cross-language library for validating email format and detecting temporary/disposable email addresses, backed by a database of over 55,000 throwaway email domains. It is available for Node.js, Python, PHP, Ruby, Rust, Go, and more.

## Use cases
- block disposable email signups
- detect throwaway email addresses
- validate email format on registration forms
- filter temporary mailboxes like yopmail
- prevent spam signups with fake emails
- check if an email domain is a temp mail provider

## When to choose
- you need disposable email detection across multiple programming languages
- you want a large, actively maintained list of throwaway domains
- you need both email format validation and temp-mail blocking in one library

## When to avoid
- you need full email deliverability verification (SMTP checks)
- you only need syntax validation without disposable detection
- you need real-time mailbox existence checks

## Facets
- artifact type: library
- maturity: active
- function: email, form-handling, security
- domain: email, security, web-development, developer-tools
- platform: python, php, ruby, go, rust, cross-platform
- tags: disposable-email-detection, email-validation, temporary-email, anti-spam, multi-language, nodejs

## Member repositories
- FGRibreau/mailchecker (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:51.873163+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:11:41.754108+00:00, confidence not recorded.
  - readme: https://github.com/FGRibreau/mailchecker (fetched 2026-08-28T04:05:51.873163+00:00, sha 0c54aa0d99aa)
- Data as of 2026-08-30T08:39:29.467469+00:00.