MailCloak Pro is breakthrough encryption program. MailCloak was designed from the ground up to be the first encryption program for Firefox, Internet Explorer and all mail clients, while making GnuPG public-key encryption so simple anyone can use it!
MailCloak is an encryption plug-in from Global Web Security Systems. MailCloak was designed from the ground up to be the first encryption killer app for IE, FF & mail clients. MailCloak uses strong GnuPG encryption for Gmail, Hotmail and Yahoo! Mail.