Natrium vs. Legacy Encrypted Providers
Architectural comparison for privacy engineers: zero-knowledge threat scanning, zero-SIM onboarding, and agent-native protocols.
Engineered for Privacy. Priced for Sovereignty.
No advertising, no data harvesting, no hidden telemetry. Choose the plan matching your security requirements and scale effortlessly.
Essential zero-knowledge encrypted email for independent privacy advocates.
- 5 GB Encrypted Email Storage
- 3
@natrium.shSecure Mailbox(s) - Automatic Tracker & Ad Blocking
- 25 MB Encrypted Attachments + Antivirus
- 2 Account Links & Identity Switching
- Hardware Passkeys / FIDO2
- End-to-End Zero-Knowledge Encryption
- Custom Domain Support
- Extra Email Aliases
High-speed storage, custom domain mapping, and hardware passkeys for power users.
- 15 GB High-Speed NVMe Storage
- 5 Email Aliases (hide your real email)
- Hardware Security Keys (YubiKey / FIDO2)
- 100 MB Large Encrypted Attachments
- Priority SecOps Support Queue
- 1 Custom Domain (
[email protected]) - Up to 5 Linked Accounts
- Custom Mail Rules & Auto-Filters
- Team Admin Console & SIEM Streaming
Team user provisioning, custom relays, and SIEM observability for organizations.
- 50 GB Dedicated Storage per User
- Unlimited Custom Domains & Aliases
- Real-Time SIEM Audit Event Streaming
- 24/7 Dedicated Priority Incident Support
- Team Admin Console & Member Provisioning
- Dedicated MTA Relays & Custom DKIM/DMARC Keys
- Unlimited Linked Accounts & Identity Switching
- Hardware Passkeys & WebAuthn Enforcement
Frequently Asked Questions (Q&A)
Clear answers to the most common questions about Natrium's security, vetting, and privacy.
No. Natrium employs strict zero-knowledge client-side encryption. Private encryption and decryption keys exist exclusively on your device, derived via Argon2id from your password and secured by your local hardware tokens. Servers store strictly ciphertext blobs; we physically and mathematically cannot decrypt your messages or produce plaintext under subpoenas.
Unrestricted email signups attract spam botnets and credential stuffers that rapidly burn IP reputation and land legitimate emails in recipient spam folders. By vetting access requests, Natrium maintains a 100% clean sender score with major providers and ensures pristine deliverability for all sovereign members.
Your access request status is tracked automatically on this device. Simply click "Already requested? Check here" on the landing page — your device signature and secure session token automatically query the vetting registry without needing to manually copy, remember, or paste a ticket serial number.
Because Natrium is truly zero-knowledge, our team has no master backdoor to reset or view your encryption keys. However, you can recover account access using your configured Security Question secret challenge or your enrolled Hardware Passkeys / FIDO2 WebAuthn authenticator. We never send insecure cleartext password reset links over third-party channels.
Yes, seamlessly. Natrium is fully interoperable with all standard RFC 5322 email clients and servers over enforced TLS 1.3 with 2048-bit DKIM, SPF, and DMARC alignment. When receiving mail from external services, Natrium automatically neutralizes tracking pixels and detonates attachments before display.
Every inbound attachment undergoes real-time threat screening across 70+ threat intelligence engines via VirusTotal and ephemeral sandbox inspection before download. Suspicious files with weaponized macros, trojans, or zero-day exploits are automatically quarantined to protect your endpoint.
Account Links allow you to connect multiple Natrium mailboxes together and switch between identities with a single click without logging out. Free accounts can link up to 2 identities, Pro accounts can link up to 5 identities, and Enterprise accounts enjoy unlimited identity switching.
Yes! We believe strong physical authentication should never be locked behind a paywall. All Natrium accounts — including the Free tier — support biometric passkeys, Touch ID, Windows Hello, and hardware security keys (YubiKey / FIDO2 / WebAuthn) for phishing-resistant logins.
Exactly zero. Natrium operates with zero advertising networks, zero marketing pixels, and zero behavioral telemetry. Our business model is funded entirely by optional paid Pro and Enterprise subscriptions, keeping our incentives 100% aligned with your privacy.