What is outbox?

An outbox is a folder or tray in an email program where outgoing messages are temporarily stored before they are sent. When a user composes an email and clicks "send", the message is placed in the outbox until it is successfully transmitted to the recipient's email server. Once the message has been sent, it moves to the sent folder for future reference.

The outbox is important for ensuring that messages are properly delivered to recipients. It provides a convenient place to view and manage outgoing messages before they are sent, allowing users to review and edit messages before they are transmitted. In some email programs, users may also have the option to schedule messages to be sent at a later time or date, in which case the messages would be stored in the outbox until the scheduled time.

Overall, the outbox is a crucial feature of email programs that helps users keep track of their outgoing messages and ensures that they are sent successfully and in a timely manner.