Very easy to use email encryption software that allows you to encrypt to anyone knowing only their email address. Email can be read using plug-ins for Outlook and Outlook Express, a free reader for Windows or a Web Browser for everyone else. This software also encrypts attachments, verifies the sender of each message to help reduce spam, and encrypts other files and documents on your computer. Encryption strength is 256bit for absolute confidence. Reading is free for everyone. Sending is also free for home users. Businesses must subscribe to send after their evaluation period. Version 4.5 adds extended proxy server support.