Download of ShazzleMail 2.3 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The actual developer of this Mac application is ShazzleMail. ShazzleMail for Mac is included in Security Tools.
From the developer:
ShazzleMail is a privacy-protective and surveillance-resistant secure email service. This easy-to-use application turns your Mac into a mail server, delivering your messages directly to your receiver via an SSL encrypted channel with no server copies.
You may want to check out more Mac applications, such as Private Contact, TelnetLauncher or Password Manager, which might be similar to ShazzleMail.