Microsoft Outlook Express

Outlook Express is a desktop mail app that was included with pre-Windows 7 versions of Internet Explorer on Windows XP . Outlook Express is no longer available or supported by Microsoft: it has been replaced by Windows Mail, an improved e-mail program with enhancements such as junk e-mail filtering and protection against phishing messages.
Windows Mail has been upgraded to Windows Live Mail , which contains even more enhancements, such as the ability to automatically configure itself to work with many popular e-mail services.