The main tasks of The Bat! are: maintaining the confidentiality of correspondence, convenience and saving time when working with mail. Postal agent The Bat! will protect your information by various methods, including encryption of user data on the hard drive and traffic encryption using SSL / TLS protocols. The Bat! allows you to keep the privacy of correspondence, as it can work without the use of global email service providers and a web interface. Thus, your letters are stored on your computer, and not in cloud storage, where they can be accessed by unauthorized persons.