Direct mail, is used to refer to communications sent to potential customers or donors via the postal service and other delivery services. Direct mail is sent to customers based on criteria such as age, income, location, profession, buying pattern, etc. Direct mail includes advertising circulars, catalogs, free-trial CDs, pre-approved credit card applications, and other unsolicited merchandising invitations delivered by mail to homes and businesses. Bulk mailings are a particularly popular method of promotion for businesses operating in the financial services, home computer, and travel and tourism industries.
In many developed countries, direct mail represents such a significant amount of the total volume of mail that special rate classes have been established. In the United States and United Kingdom, for example, there are bulk mail rates that enable marketers to send mail at rates that are substantially lower than regular first-class rates. In order to qualify for these rates, marketers must format and sort the mail in particular ways—which reduces the handling (and therefore costs) required by the postal service. In the US, marketers send over 90 billion pieces of direct mail per year.
Advertisers often refine direct mail practices into targeted mailing, in which mail is sent out following database analysis to select recipients considered most likely to respond positively. For example, a person who has demonstrated an interest in golf may receive direct mail for golf-related products or perhaps for goods and services that are appropriate for golfers. This use of database analysis is a type of database marketing. The United States Postal Service calls this form of mail “advertising mail” (admail for short).