Posteo
Posteo is a privacy-focused, eco-friendly email service provider based in Germany that offers encrypted email, calendar, and contacts. It operates on renewable energy, does not display advertisements, and does not track user data. The service emphasizes strong data protection, transparency, and ethical business practices, making it a popular choice for users concerned about digital privacy.
Developers should consider using Posteo when building applications or workflows that require secure, private email communication, especially for handling sensitive data or in compliance with regulations like GDPR. It is ideal for projects where user privacy is a priority, such as in healthcare, finance, or activist tools, and for developers who value ethical, environmentally sustainable technology platforms.