Shazzlemail is described as 'ShazzleMail is the first privacy-protective and surveillance-resistant secure email service. ShazzleMail doesn’t travel the web, but delivers mail directly from your smartphone. No server copies, no open access to NSA, and no big business data mining' and is an app in the security & privacy category. There are more than 10 alternatives to Shazzlemail for a variety of platforms, including Web-based, Android, iPhone, Windows and Linux apps. The best Shazzlemail alternative is Proton Mail, which is both free and Open Source. Other great apps like Shazzlemail are Tuta Mail, mailbox, Posteo and Mailfence.