E-mail plays a pivotal role in our daily lives. If not all, almost every one of us has our personal e-mail addresses. We often use e-mails to contact our acquaintances. But in this sophisticated society, numerous marketers take the advantages of e-mailing, and turn it into a way of marketing. Therefore, e-mail marketing arose. E-mail marketing has becomes a form of direct marketing which uses electronic mail as a means of communicating commercial or fund raising messages to an audience.

On the internet, e-mail marketing is very popular with companies as there are a lot of advantages. Firstly, e-mailing can clearly distribute information to a wide range of specific, potential customers at a relatively very low cost, if being compared with other methods such as direct mail or printed newsletters.

Furthermore, e-mail marketing proves to be a very efficient and convenient way of marketing. Customers do not need to search for the advertisements of certain products, but they are received and informed about the news of certain products directly by reading the e-mail which ia sent by the marketing company. Since over half of Internet users check or send e-mail on a typical day, hence the e-mails can be almost 100% assured that they will be seen or even read by Internet users, in other words, approximately each one of us in this very earth could interact with e-mail marketing.

However, there are disadvantages regarding e-mail marketing as well. These days, many companies send unsolicited bulk e-mail, which is also known as spam. For users of the Internet, it is essential for them to raise their awareness pertaining to this matter. Nowadays, spammers often create a sheer volume of spam e-mails which led some users to mistake legitimate commercial e-mail for spam, especially when both of them have a very similar appearance, such as HTML and some flashy graphics. Often, spam filters are being used by users in order to block these spam e-mails.