This depends on the Email program you are using. Your Email program will notify you of an attachment in various ways. If you use Eudora Mail, you will notice a picture beside your message in the Inbox, the picture should look like a piece of paper, or a paper-clip. When you open the message up, you should see another indication that you have received an attachment. Generally it will tell you the filename and path where the attachment was saved on your computer (e.g. c:\eudora\attach\attachment.zip).