1. A document search system, comprising: a computer network including a plurality of computers; an email software program stored on computer readable medium on each of the computers and being executed by a processor in the computer; a router communicating with the computer network for routing email from the email software program in the computer network; a database for storing attachment flies and email documents; a search program being stored on computer readable medium on at least one of the computers and being executed by a processor in the computer, the search program initiating storage of email documents and attachment files, the search program includes a search request which includes a document search field having two search fields for searching the email documents and the attachment files in the database, the search request further includes a background field of search for searching in a background of the stored email documents and the attachment files in the database using the search request; a mail journal database for storing email data extracted by the search program from the email; a message identification (ID) identifying the email document, the ID being generated by the search program and associating an email document with corresponding email data, and the ID associating the email document with an attachment file when an attachment file is sent, wherein message IDs are stored in the first and second databases, and the third database stores email data; and a file loader being part of the search program, the file loader replacing an attachment file with a file link and storing the attachment file in the database, the file link providing access to the attachment file in the database; the search request further includes a document search field configured to search the email data, the emails associated with the document search being viewable by a user, the background field of search configured to search the email data in the background of the stored email documents and the attachment files in the database and in the database mail journal, the emails associated with the background field of search being hidden from the user.