The present invention discloses a method and apparatus, preferably embodied as a computer program product, wherein e-mail is classified according to categories by imbedding a category identifier into the header of the e-mail message. The invention also provides for a series of electronic storage sites such that upon downloading the e-mail containing the category identifier onto a client computer, the e-mail message is placed into a storage site corresponding to the category identifier. A user of the present invention would no longer need to search through every e-mail message to find a specific e-mail message regarding a particular category. A category table is provided which contains the category identifiers or designators with which to categorize the e-mail message.