The Bat! Professional is a desktop email client for Windows, with variety of security features to to protect your email correspondence and prevent email hacking. It supports PGP and GnuPG (GPG) for end-to-end email encryption (E2EE). The Bat! also supports S/MIME via Internal Implementation or Microsoft CryptoAPI.
During the installation, you can enable the On-The-Fly encryption, so all the data (messages, address books, configuration files) will be stored encrypted on your hard disk. In this mode, unencrypted data never appear on the disk. On-the-fly encryption uses AES hardware acceleration on modern Intel processors (AES-NI) and produces no noticeable delays.
The Bat! mailer is available in two editions - Professional and Home. Pro version provides additional features such as biometric authentication, message base encryption, and hardware authentication with mail servers.
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