MSO 2003 Outlook - recognizing email addresses when typing

Tools, Options, Preferences tab. Click the Email Options button, click the Advanced Email Options button, and place a check in the Suggest names while completing To, Cc, and Bcc fields. Online help....

• Suggest names while completing To, Cc, and Bcc fields check box - Automatically checks the names entered in the To, Cc, and Bcc boxes to see if the name is recognized. If a name has been entered before, Microsoft Outlook will remember it and suggest it as you are typing. If it is the name you want, simply click on the suggested name to select it.
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  You may want to look at the Automatic Name Checking feature. According to online help....

  
  
  
• Automatic name checking check box — Automatically checks the names entered in the To, Cc, and Bcc boxes of messages. If an exact match is found, the name is underlined. If multiple names are found that match what you type, a red wavy line appears under the name. Right-click the name to see the other names found. If multiple names are found that match what you type, and you have used the address before, the name you chose previously from the list of names found appears with a green dashed underline to remind you that there are other choices.