Mailcheck is a service designed to enhance email accuracy by detecting and correcting typos in email addresses as they are being entered. By integrating with various platforms, Mailcheck helps businesses minimize undelivered emails and improve communication efficiency. The service can be particularly beneficial for online forms, registrations, and checkout processes, ensuring that businesses maintain accurate and up-to-date contact information for their customers. Mailcheck's technology suggests corrections for common domain misspellings and verifies email addresses in real-time, reducing errors and enhancing data quality.