How to build and develop an opt-in Email marketing database ?
Email marketing is the act of using people's email to keep in touch with them. It is considered as a direct mean to communicate with costumers, "to encourage customer loyalty and repeat business" or "to purchase something immediately" etc. In few words, it is a simple and an easy way of advertising and communicating with costumers. Even though it is a simple and cheap way to keep in touch with costumers, it needs to be done properly.