quantaMail - Version 1.5 QuantaMail is a FREE e-mail enhancement that utilizes an existing e-mail service and provides secure, encrypted e-mail with message destruction and password-protection capabilities. After installing QuantaMail, one can immediately begin sending secure, encrypted email. Recipients of the secure mail will always be provided with a FREE QuantaMail viewer. Essentially QuantaMail gives the user complete control over their emails. Emails can never be opened without the necessary passwords, forwarded without consent, and can even be destroyed – before or after – it has been read.