End-to-end encrypted. Post-quantum ready. Zero-knowledge architecture. Your email is yours alone -- not even Mailtron can read it.
End-to-End Encryption
Every Mailtron-to-Mailtron email is end-to-end encrypted using OpenPGP. Encryption happens in your browser before the message ever leaves your device. Only the intended recipient can decrypt it.
For external recipients (Gmail, Outlook, etc.), messages are encrypted at rest with AES-256. You can also invite them to exchange PGP keys for full E2E encryption.
Mailtron servers only see encrypted ciphertext. Your keys never leave your device.
Post-Quantum Cryptography
Quantum computers will eventually break today's RSA and ECC encryption. Mailtron uses a hybrid approach: OpenPGP + ML-KEM (Module-Lattice Key Encapsulation Mechanism, NIST-standardized) to protect your messages against both classical and quantum attacks.
This means your emails encrypted today will remain unreadable even when large-scale quantum computers arrive.
Adversaries may capture encrypted traffic today and decrypt it once quantum computers exist. Mailtron's post-quantum layer prevents this attack vector entirely.
Zero-Knowledge Architecture
Mailtron's zero-knowledge architecture means your encryption keys are generated on your device and never sent to our servers. We store only encrypted ciphertext. Even if our servers were compromised, your emails would remain unreadable.
Mailtron cannot read your email. Mailtron cannot share your email. Mailtron cannot be compelled to reveal your email -- because we simply do not have the keys.
Active Protection
Beyond encryption, Mailtron deploys multiple layers of active protection to keep your inbox safe from threats.
Automatically strips tracking pixels and remote content that senders use to monitor when, where, and how many times you open their emails.
Machine learning models analyze every incoming email for phishing indicators -- deceptive links, impersonation attempts, urgency patterns -- with 98%+ accuracy.
Every link is scanned at click time against threat intelligence databases. Malicious URLs are blocked before they can harm you, even if they were safe when originally sent.
Full email authentication compliance. Every outbound message is signed with DKIM, verified with SPF, and enforced by DMARC policies. BIMI support shows verified brand logos.
Your IP address is stripped from all outgoing email headers. Recipients cannot determine your physical location or network from messages you send.
Multi-engine malware scanning on all attachments. Suspicious files are sandboxed and analyzed before reaching your inbox. Zero-day threat detection included.
Data Residency
Choose where your encrypted data is stored. Mailtron offers data residency options to meet local regulatory requirements and organizational policies.
Meet GDPR, CCPA, and local data protection regulations with configurable data residency. Available on Business and Enterprise plans.
Compliance
Mailtron is designed to meet the compliance requirements of healthcare, finance, legal, and government organizations.
Business Associate Agreement available. Encrypted email for healthcare providers, insurers, and patients.
ReadyIndependent audit of our security controls, availability, and confidentiality practices. Annual renewal.
In ProgressFull GDPR compliance with data portability, right to erasure, data processing agreements, and EU data residency.
ReadyOpen Source
Our encryption libraries are open source and auditable. Don't trust us -- verify us. Security through obscurity is not security at all.
Every Mailtron account includes E2E encryption and tracker blocking. Free forever.
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