Mailbox.org vs ProtonMail
A detailed comparison to help you choose between Mailbox.org and ProtonMail.
Mailbox.org Privacy-focused email with PGP support and cloud. | ProtonMail End-to-end encrypted email | |
|---|---|---|
| Rating | 4.2 (213 reviews) | 4.6 (20000 reviews) |
| Pricing Model | paid | freemium |
| Starting Price | From $1/mo | From $0/mo |
| Best For | Best for users seeking privacy and security tools | Best encrypted email |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | — | — |
Mailbox.org
Pros
- + Works with IMAP/SMTP/POP3 and CalDAV/CardDAV
- + Tiered plans include Drive, Office, and Meet
- + Publishes transparency reports on authority requests
- + Supports many aliases and custom domains on paid tiers
- + Drops obsolete TLS versions; modern baseline security
Cons
- - No free plan; paid service even for basics
- - YubiKey support reportedly broken with Login 2.0
- - Not fully open source, per third-party review
- - ActiveSync has documented limitations vs open protocols
ProtonMail
Pros
- + Automatic E2EE between Proton Mail users
- + Zero-access encryption for stored mailbox data
- + OpenPGP support for external encrypted email
- + Password-protected encrypted emails to anyone
- + Open-source client apps with published audits
- + Inbox tracking protection blocks pixels, hides IP
Cons
- - Not end-to-end encrypted to non-Proton by default
- - Metadata and headers aren’t fully encrypted
- - Can be compelled to log IP under Swiss orders
- - Free accounts may be deleted after 12 months inactive
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