Easy-to-use mail server for Linux and Windows. Includes the fast and stylish AJAX webmail with calendar, address book, folders, preview pane, rich-text editor and web administration panel. Supports POP3/IMAP/SMTP and secure TLS/SSL connections, multiple domains, external mail accounts, spam protection, antivirus integration, mailing lists, filters, aliases, logging, remote administration. Linux and Windows. Free download and easy install.