Swift Mail. Fastmail's modern mail standard delivered natively on macOS
Hello HN! I'm excited to introduce Swift Mail, a native macOS email client purpose-built for the JMAP mail standard. Primarily constructed with SwiftUI and occasional AppKit elements, Swift Mail combines the speed and efficiency of a modern mail standard with desktop-centric features such as system notifications, keyboard shortcuts, quick look, multiple windows, state restoration, dark mode, and more. Swift Mail distinguishes itself from other email clients with its steadfast commitment to the JMAP standard over the traditional IMAP implementation, facilitating seamless alignment with modern…
Swift Mail. Fastmail's modern mail standard delivered natively on macOS launched on February 20, 2024 with 79 votes, #798 of 3,962 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 2 years on.
In plain words
Swift Mail is a native macOS email client built with SwiftUI that uses the JMAP mail standard instead of traditional IMAP. Designed for Fastmail users, it offers desktop features including system notifications, keyboard shortcuts, multiple windows, dark mode, and state restoration. The client supports multiple sending identities, wildcard aliases, and flexible label or folder organization, prioritizing speed and modern mail functionality over legacy email protocols.
written from the facts on this page · September 2026
From the sources
Designed from the ground up to deliver the speed and modern features of JMAP mail to macOS with an interface that feels at home on your Mac.
In the maker’s words, at launch
Hello HN! I'm excited to introduce Swift Mail, a native macOS email client purpose-built for the JMAP mail standard. Primarily constructed with SwiftUI and occasional AppKit elements, Swift Mail combines the speed and efficiency of a modern mail standard with desktop-centric features such as system notifications…
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