# mailcheck/mailcheck

Reduce misspelled email addresses in your web apps.

Repository: https://github.com/mailcheck/mailcheck
Canonical: https://ross.abutalabs.com/products/mailcheck
Language: JavaScript
License: MIT
License Family: permissive
Last push: 2022-05-06T21:06:51+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 5287, "days_push": 1580, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 7938, forks 454 (observed 2026-08-28T04:10:10.043940+00:00)

## What it is
A JavaScript library and jQuery plugin that detects misspelled email domains and suggests corrections, e.g. turning 'user@gmil.con' into 'user@gmail.com'. It works against configurable lists of domains, second-level domains, and top-level domains using string distance matching.

## Use cases
- suggest correct email domain when users mistype it in signup forms
- reduce bounced emails from misspelled addresses like gmil.con or hotmail.cmo
- add email typo correction to a web form
- validate email input on blur in a jQuery app
- customize domain suggestion lists for my own mail domains

## When to choose
- you have email input fields in a web app and want to catch common domain typos
- you want a small, dependency-light client-side library with jQuery support

## When to avoid
- you need full email deliverability verification or SMTP-level validation
- you need a maintained solution with recent updates or framework-specific integrations

## Facets
- artifact type: library
- maturity: maintenance
- function: form-handling
- domain: web-development, frontend, email
- platform: browser
- tags: email-validation, spell-check, jquery-plugin, typo-correction, nodejs, javascript

## Member repositories
- mailcheck/mailcheck (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:10.043940+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 2026-08-29T17:33:14.449934+00:00, confidence not recorded.
  - readme: https://github.com/mailcheck/mailcheck (fetched 2026-08-28T04:10:10.043940+00:00, sha c20c216bb7c6)
  - registry_npm: https://registry.npmjs.org/mailcheck (fetched 2026-08-29T08:30:07.389832+00:00, sha e86aec3158bd)
- Data as of 2026-08-30T08:39:29.467469+00:00.