The most popular tool in Outlook is the e-mail program, which you can use to send and receive e-mail messages. Outlook includes toolbar buttons and commands to make sending messages and adding elements such as a link to a Web site or a file as easy as possible. This part discusses the basics of sending mail. (Part 3, "Reading and Handling E-mail Messages," covers receiving mail, and Part 4, "Using Advanced Mail Features," covers more advanced features of the mail program.)