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Encryption Gateway and Post-Quantum Email Encryption

Nov 2, 2026 - 17 min read

The first of the features held back from the v1.0 cut is here. Stalwart v1.0.2 introduces an encryption gateway that encrypts outgoing mail for its recipients, a new OpenPGP and S/MIME engine with modern and post-quantum algorithms, and a restyled WebUI. Everything in this post is open source.

Introducing Encryption at Rest: Protecting Your Emails Even When They Sleep

Aug 3, 2023 - 2 min read

Mauro D.

Project Maintainer

In the digital age where privacy and data protection are paramount, we continually strive to enhance the security features offered by Stalwart Mail Server. Today, we’re thrilled to announce our latest upgrade – Encryption at Rest!