{"categories":[{"label":"Utilities","url":"https://skillfed.io/packages/category/utilities/5"}],"enrichment":{"capability":"Validates email addresses against format rules and checks whether they belong to temporary/throwaway email services using a database of over 55,000 known disposable domains.","skillfed_tags":["email-validation","user-input-validation"],"use_cases":["Block temporary email addresses during user registration to ensure valid contact information.","Filter out disposable emails from mailing lists before sending campaigns to reduce bounce rates.","Validate email format and reject known spam-box domains in contact forms.","Pre-screen user signups to avoid wasted communication attempts with non-functional addresses.","Integrate email validation into data import pipelines to catch bad addresses early."],"what_it_does":"MailChecker is a cross-language email validation library that performs two checks: format validation (using standard email regex patterns) and temporary email detection (by checking against a curated database of over 55,000 known disposable email domains). It helps prevent sign-ups and communications with throwaway email services like Yopmail and similar providers.\n\nThe package is designed for developers who need to filter out temporary email addresses during user registration or contact workflows. It has no runtime dependencies, installs quickly, and provides a simple API: call `MailChecker.is_valid()` with an email string and receive a boolean result. The underlying domain list is maintained by the project maintainers and can be extended by contributors.","worth_installing":"Yes. The package solves a real problem with zero dependencies, permissive licensing, active maintenance, and a straightforward API. Use it when you need to reject temporary email addresses during signup or contact workflows. The only caveat is verifying that the throwaway domain database stays current for your use case."},"id":"mailchecker","links":{"html":"https://skillfed.io/packages/mailchecker","md":"https://skillfed.io/packages/mailchecker.md","pypi":"https://pypi.org/project/mailchecker/"},"maintenance":{"status":"active"},"meta":{"latest_release":"2026-07-19","license_spdx":null,"license_treatment":"permissive","name":"mailchecker","python_support":"supports_current","summary":"Cross-language temporary email detection library. Stop users from signing up with temporary email addresses."},"popularity":{"monthly_downloads":588383,"position":5868,"tier":"top_15000"},"security":{"n_vulnerabilities":0},"version":"6.0.21"}