# Mail client app shell with folder sidebar, split list and reading panes, and icon app rail

> Email workspace: inset Sidebar with account menu, compose dialog, folders, labels and contacts, a search and category-filter message list, a reading pane, and a right icon rail. shadcn Sidebar, Card, Empty, Dialog, ReUI Badge. Mail inbox, webmail UI.

A paid shadcn/ui block sold by the [@reui](https://reui.io/?utm_source=shadcn.exchange) registry, listed on [shadcn.exchange](https://shadcn.exchange/r/reui/app-shell-20).

- Page, with a preview: https://shadcn.exchange/r/reui/app-shell-20
- Screenshot: https://abzjhwgwpdpz7ua5.public.blob.vercel-storage.com/shots/reui/app-shell-20-light-d6442c54b62debfb.png
- Listed: 2026-10-13

## Buy and install

@reui sells this block, and its code is not on shadcn.exchange. Buy it from the registry, which installs it for those who have: https://shadcn.exchange/out/reui/app-shell-20

## Dependencies

- npm packages: `cn`, `next-themes`
- Registry items: `@reui/badge`, `@reui/icon-stack`, `avatar`, `button`, `card`, `dialog`, `dropdown-menu`, `empty`, `input`, `label`, `scroll-area`, `sidebar`, `textarea`, `tooltip`