Sylpheed-Claws is the extended version of Sylpheed, a GTK+ based, lightweight, and fast email client. Almost all commands are accessible with the keyboard. It also has many features such as multiple accounts, POP3/SMTP/IMAP/NNTP support, OpenSSL, GnuPG, and LDAP support, a plugin system, spell
... [More] checking, filtering, Actions, spam and virus filters, an address book, internationalization, and more. [Less]
Gpg4win is a installer package for Windows (2000/XP/2003/Vista) with computer programs and handbooks for EMail and file encryption. Both relevant cryptography standards are supported, OpenPGP and S/MIME (the latter is in progress and currently works with GnuPG2 and Claws Mail). Gpg4win and the
... [More] software included with Gpg4win are Free Software. [Less]
GPA is a graphical frontend for the GNU Privacy Guard (GnuPG, http://www.gnupg.org). GPA can be used to encrypt, decrypt, and sign files, to verify signatures and to manage the private and public keys.