Open Microsoft Outlook Express, select a folder and one message inside. This message will be the start of your IP scan. Then, in the window above, type the number of emails to be scanned and hit button Run Scan. Focus will alternate between OE and Hiproxy until the predefined number of email messages are scanned. Later, you can select any row from the result list and press button Whois to find more information about sender's IP address (Pro only). Or, select multiple rows and Copy them to the clipboard to export elsewhere.