ProtonMail is an end-to-end encrypted email service based in Switzerland.
Free tier available, premium plans starting at $5/month
Best mailbox.org Alternatives ranked by AI · updated May 2025
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Mailbox.org is a secure email service that focuses on privacy and data protection.
Price: Starting from €1 per month
🎯 mailbox.org/de
Top 6 mailbox.org alternatives
Tutanota is an open-source end-to-end encrypted email software and freemium hosted secure email service.
Freemium
FastMail is a secure and reliable email service provider known for its speed and efficiency.
Starting at $3/month
Zoho Mail is a secure and ad-free email hosting service that ensures data privacy and offers a clean interface for efficient communication.
Starting from $1/user/month
Posteo is a secure email service that focuses on privacy and sustainability, offering end-to-end encryption and sustainable practices.
Starting at €1 per month
Mailfence is a secure and private email service that offers end-to-end encryption and digital signatures.
Starting from $2.50/month
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