You will be able to create your own folders. Find a reference to this on the main toolbar. Otherwise the toolbar menu will refer to move or transfer. Most programs will show all folders at the same time. A separate window will display the full text.
Some email programs display the time and date of transmission.
Others show the time and date of receipt. Some show both. As such, your composed messages are temporarily placed in the Outbox. At the same time, any new messages are received. Any format can be transmitted, however the recipient will require software capable of reading each format.