Top SCRYPTmail Alternative Email Services for Enhanced Privacy
SCRYPTmail has carved out a niche as a true end-to-end encrypted email service, known for encrypting both email content and metadata like sender/recipient information. With its public source code, zero-data knowledge approach, and features like disposable emails and strong RSA key support, it prioritizes user privacy. However, like any software, users might seek a SCRYPTmail alternative for various reasons, whether it's looking for different feature sets, specific platform availability, or simply exploring other highly secure options in the market.
Top SCRYPTmail Alternatives
If you're on the hunt for email services that offer comparable or even superior levels of privacy and security to SCRYPTmail, you've come to the right place. We've compiled a list of excellent alternatives that prioritize encryption, anonymity, and user control.

ProtonMail
ProtonMail is a secure email service brought to you by MIT and CERN scientists, based in Switzerland. It offers end-to-end encryption and a strong focus on privacy. Available as Freemium, paid, and Open Source options across Web, Android, iPhone, and iPad, it's a fantastic SCRYPTmail alternative. Key features include PGP Encryption, custom domains, anonymous email, 4096 Bit encryption, and self-destructing messages, making it a comprehensive choice for privacy-conscious users.

Tutanota
Tutanota is a free and open-source web-mail client with a strong emphasis on privacy and security, similar to SCRYPTmail. It's available on Free Personal, paid, and Open Source tiers for Web, Android, iPhone, iPad, and F-Droid. As a notable SCRYPTmail alternative, Tutanota boasts features like encrypted email, encrypted calendar, custom domains, end-to-end encryption, night mode, and integrated file sharing, providing a clean and secure communication experience.

Posteo
Posteo is a commercial, web- and IMAP-based email service based in Germany, costing 1€/month for 2GB of storage. Information is hosted on encrypted hard drives, and they use electricity from renewable resources. While not open-source, it offers calendar integration, encrypted email, and a focus on privacy and transparency, making it a reliable SCRYPTmail alternative for those seeking a paid, eco-friendly option.

Mailpile
Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features. It's Free and Open Source, available for Linux, Web, and Self-Hosted setups with OpenPGP support. For users looking for a self-hosted SCRYPTmail alternative with strong encryption and POP3 support, Mailpile is an excellent choice funded by a community of backers.

Enigmail
Enigmail is a security extension for Mozilla Thunderbird and SeaMonkey. It's Free and Open Source, compatible with Mac, Windows, and Linux, and integrates GnuPG for encrypted email. While not a standalone email service like SCRYPTmail, it's an essential SCRYPTmail alternative for users who prefer using Thunderbird or SeaMonkey and want to add robust encryption capabilities to their existing setup.

mailbox.org
mailbox.org offers a secure e-mail account for home and business use, providing a strong SCRYPTmail alternative for commercial users. It's a Commercial, paid, Web-based service with features like a built-in calendar, custom domains, encrypted email, privacy focus, CalDAV, CardDAV, Gpg encryption, PGP Encryption, two-factor authentication, and self-destructing messages. Its comprehensive suite makes it ideal for professional and personal secure communication.

Yandex.Mail
Yandex.Mail is a Free web-based email service with mobile apps for Windows Mobile, Android, iPhone, Java Mobile, S60, and Android Wear. It provides secure protection from spam and viruses and can be used offline. While not focused on end-to-end encryption like SCRYPTmail, it offers features like push notifications, custom domains, IMAP and POP3 support, and unlimited storage, serving as a functional and free SCRYPTmail alternative for general use.

Mailvelope
Mailvelope is a Free and Open Source browser extension for Mac, Windows, Linux, Chrome OS, Microsoft Edge, Chrome, and Firefox. It allows for encrypted email exchange following the OpenPGP standard, integrating directly into webmail services. Similar to Enigmail, Mailvelope is an excellent SCRYPTmail alternative for users who want to add encryption to their existing webmail interface without switching services.

Mailfence
Mailfence is a free secure and private mail service offering end-to-end encrypted email. Available as Freemium and paid options across Web, Android, iPhone, Android Tablet, and iPad, it's a strong SCRYPTmail alternative. Features include calendar integration, chat, digital signatures, IMAP/POP3 support, document sharing, PGP encryption, and robust security and privacy protections, making it a comprehensive and secure communication platform.

Vivaldi Mail
Vivaldi Mail is a Free web-based email service with no ads and no strings attached, including contacts and calendar features. While not focusing on end-to-end encryption as deeply as SCRYPTmail, it offers IMAP/POP3 support, encrypted email, mail filtering, and PGP encryption, providing a clean and private email experience as a viable SCRYPTmail alternative for everyday use.
Each of these SCRYPTmail alternatives brings its unique strengths to the table, from robust end-to-end encryption to open-source transparency and broad platform compatibility. We encourage you to explore the features and pricing models of each option to find the best fit for your specific privacy and communication needs.