If you answered 'Yes' to above question, I am afraid that you are not using newest technology to its full potential. Using Outlook (or Outlook Express) as recruitment software or resume supervision application has several disadvantages, mainly:
You can not share resumes on your desktop with other users and vice-versa. (Unless you have invested in other technologies like Ms Exchange) You can not quest attachments. Most of the resumes you get are received as attachment with the e-mail. So you can not use keyword based search. Only choice to administrate resumes in Outlook is to use folders. You may have folders for short-listed candidates, candidates called for interview, rejected candidates etc. But folders too become unmanageable when you have several vacancies and need to track applicant for each vacancy. You can not keep a history of your interaction with applicant. If you spoke to a candidate today and lets say he was available only after a month, where do you description that information? Using e-mail client as Resume supervision principles is at the most a make-shift arrangement which would soon get out of hands and become unmanageable.