Email Validator CLI: Clean Your Email Lists in Seconds (Free Tool)

Email Validator CLI: Clean Your Email Lists in Seconds Marketing teams waste $500-2000/month sending emails to invalid addresses. Developers waste 1-2 hours writing custom email validation for every signup form. I built Email Validator CLI to fix this — a command-line tool that validates email addresses instantly with syntax checking, disposable email detection, and optional MX verification. The Problem Bad email data costs money: Invalid emails bounce - damages sender reputation Disposable emails - sign up, use your service, abandon Typos slip through - user types "gmial.com" instead of "gmail.com" Duplicates waste sends - redundant campaign emails Traditional solutions: Writing custom validation code (error-prone, slow) Using API services ($200+/month for large lists) Manual CSV cleanup (tedious, error-prone) The Solution Email Validator CLI cleans email lists in one command: # Single email python email_validator.py john@example.com # Batch from file (1000s of emails) python email_va