Direct marketing is a type of marketing that involves marketing and advertising measures which concentrate on particular prospective clients rather than any person among the multitudes who may come across the particular advertisements. This type of marketing can be easily tracked and with it, it is far easier to maintain the different statistics about the people responding to the advertisements etcetera. Such a marketing carried out by the medium of emails is called as direct email marketing and it has grown manifold in its popularity over the past few years. To help you with the same, much software are now available in the market.