Posteo

Posteo is a Berlin-based email provider that prioritizes sustainability, security, and privacy above all else. Since 2009, this innovative service has been setting new standards for ethical email communication.

Key Features:

• 2GB email storage with upgrade options for just €1 per month
• Complete anonymity - no personal data collection during signup or usage
• 100% green energy powered by Green Planet Energy
• Comprehensive encryption for emails, calendars, and address books at the touch of a button
• Two-factor authentication for enhanced security
• Ad-free experience with no tracking or user profiling

What Makes Posteo Special: The service offers integrated calendar and address book functionality with CardDAV and CalDAV synchronization across all devices. Their crypto mail storage encrypts your entire mailbox automatically, while PGP integration in webmail makes secure communication accessible to everyone.

Sustainability Focus: Posteo operates with zero business flights, maintains an organic vegetarian canteen, and uses appropriately sized servers for resource conservation. They finance through ethical banks and actively support public transportation for employees.

Privacy Guarantee: No connection between payment data and accounts, no IP address logging, and servers located in highly secured German data centers. Their free migration service transfers existing mailboxes via encrypted connections without third-party involvement.