Foxmail

You want a light, free, longtime email client that manages several mailboxes well. Foxmail is a fond memory for many: a fast, lightweight classic email client, unify multiple mailboxes, send and receive quickly with a clean interface, and keep mail tidy with folders and filter rules, free and handy, a trusted email tool for years. A macOS app.

Features

Multi-account: Unify multiple mailboxes.

Fast and light: A clean, quick experience.

Mail management: Folders and filter rules.

Classic: A longtime free email client.