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Sweetbriar

Experimental

A native Mac email client for Proton Mail, built on a shared Rust core.

Estimated: the local archive is in development, Proton Mail sync and sending are later milestones, and the v0.0.1 release is an app-shell preview.

Built first as its owner's daily mail client. Development has reached a local archive: import Apple Mail exports, then browse, read and search them. Proton Mail through Proton Bridge, sending and filing follow; a Linux version is planned. Requires macOS 26 on Apple silicon.

Sweetbriar native archive message list with eight invented messages
An invented local mail archive.