Searching allows you to find all messages that contain text stored in the following parts:
From Finds all messages sent by certain people
Subject Finds all messages related to a specific topic
Message Finds all messages that contain certain text
Here's how to search for a message:
Start Mail. (Click the Mail icon on the Dock or double-click the Mail icon in the Applications folder.)
Click in the Search text box that appears in the upper-right corner of the Mail window.
Type the text you want to find. As you type, Mail displays all messages that match your typed text, as shown in Figure 46-2. The messages that most closely match your text (found in the sender's name, the email subject, or the message itself) appear at the top of the Mail window.
Now that you've filtered your inbox to a smaller set of your messages, you can sort these results by different fields, such as Subject or From, just as you did with your entire mailbox.
Click a message to read it.
Click the close button of the Search text box to clear the box. All your messages appear in the order they were in before you started your search.