An email list or electronic mailing list is a list of email addresses that facilitates marketers widespread distribution of information to their existing and prospective customers.

Organizations, websites, and blogs collect their customers’ email addresses in order to contact them for sending company updates, newsletters, press releases, product and services offers. This collection of people that signed up to receive those updates from organizations, websites, and blogs are called an email list.

  • An email list that is collected from websites, blogs, social media campaigns, trade shows, and events with the permission of the recipients are known as permission-based email list or opt-in email list.
  • An email list that is collected from third-party sources like government records and public business directories without the permission of the recipients are known as third-party email list.