Definition: DMZ stands for Direct Mail Zone, where a company sends direct mail to customers without having its own employees or facilities. It's used in industries like technology that can handle direct sales, such as software companies, hardware retailers, and software development firms. DMZs are crucial for maintaining customer relationships and building brand loyalty by providing access to a large number of contacts through direct mailing. Definition: A DMZ is a digital marketing zone where a company sends direct mail or promotional materials to customers without its own employees or facilities.