You can sort your mail in various ways from the View menu. The area at the bottom right shows the contents of the current message. Use the scroll bars on the side and bottom of the window to see the rest of the message. You may find the Welcome message of interest as it contains lots of hints and tips as well as showing just some of the interesting ways you can format messages and incorporate pictures and links to websites, for example. It may be useful to print this message out.
Folders make it easy to organise mail by category.
Mail deleted from the trash folder can never be retrieved. The Attach button allows a file to be sent with the e-mail. It is usual to enter a heading for your message in the Subject box so that the recipient can see what the message is about before deciding to open it. The large box is where you type in the message you wish to send. Clicking on Spelling will check for errors and, finally a click on Send will send your message on its way.