The Compose menu has choices for opening Compose windows from which you can write and send mail messages.
Use Reply to open a Compose window to respond to a selected message. See "Replying to a Message" for more information.
Use Vacation to initiate or stop an automatic response to incoming messages when you are away from your mail. See "Using the Vacation Notifier" for more information about Vacation options.
The default item of the Compose menu is New. When you choose New, a new Compose window is opened.