Inbox 5 block design & features
Inbox5 is a project email built with shadcn/ui Button, Scroll Area, and Textarea. A back link returns to the mail list. Archive, Star, and Snooze sit in the header.
The message shows the sender portrait, subject, and body. A reply field sits under the thread.
This is the reading view for one message. The header actions are the distinctive controls. Content-driven: it needs a sender, a subject, and a body.
On a narrow screen the mailbox column hides and the message uses the full width.