A mailing list is a set of email addresses that can get one and the same email message simultaneously. If an email is sent to the principal email address associated with the mailing list, for example – firstname.lastname@example.org, it is re-sent automatically to all of the addresses which are added to that list. This option will permit you to contact electronic mailing list subscribers without difficulty, so you can send out announcements or any other information on a periodic basis to your clients. Depending on the software that is used to manage the mailing list, email addresses can be added manually by the mailing list’s admin or people have to sign up, giving their permission to receive messages in the future. A mailing list will spare you plenty of time and will allow you to stay in touch with your customers easily, which can supercharge the popularity of your web site.