Mailbox

Mailbox is a German email provider with optional encryption running on renewable energy.

Energy Efficient Self-Hostable Privacy Friendly European No Ads
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Description

Mailbox is a German-based email and productivity suite, rebranded from Mailbox.org in 2025. Known for its strong focus on privacy, security, and digital sovereignty, Mailbox offers a comprehensive set of tools, including encrypted email, calendar, cloud storage, office apps, and video conferencing, all hosted in Berlin’s eco-friendly data centres.

Mailbox supports PGP encryption for emails, ensuring only the intended recipient can read messages. The service is completely ad-free, does not track user activity, and publishes regular transparency reports. It offers features like disposable email addresses, two-factor authentication, and support for third-party email clients via IMAP/POP.

In 2025, Mailbox received the BSI Gold Status for its security standards. Mailbox publishes transparency reports detailing requests from investigative authorities. Mailbox supports and uses open-source technologies like Open Xchange, but it does not publish its own code as far as I know.

The service has been adopted by educational institutions and public authorities in Germany, though some regions have faced pressure to switch to Microsoft Exchange.

It offers several pricing plans, starting at 1€ per month for 2GB of storage and 2 aliases @mailbox.org.

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Sustainability Features of Mailbox

Energy Efficient - Hardware or services designed to consume minimal energy, reducing environmental impact.

Mailbox uses renewable energy to power its servers, reducing its carbon footprint.

Self-Hostable - Services that can be hosted by users, giving full control over data and enhancing privacy.

Mailbox offers self-hosting options for enterprises, giving full control over data.

Privacy Friendly - It does not track users unnecessarily.

Mailbox does not track users or display personalised ads. It offers optional PGP Email encryption.

European - Based in Europe, ensuring compliance with GDPR and European privacy and labor regulations.

Mailbox is based in Germany, ensuring compliance with strong privacy laws.

No Ads - No advertisements

Mailbox is ad-free, providing a clean and distraction-free email experience.

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Summary

Mailbox is a leading privacy-focused, ad-free email and productivity suite, offering encryption and transparency. Its German jurisdiction and comprehensive feature set make it a strong alternative to mainstream providers, ideal for users seeking both security and functionality.

Sustainability Score
89

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