An electronic mailing list is a list of email addresses which receive the very same message simultaneously. When you send a message to the mailing list address, your message will be forwarded to all the email addresses on that list automatically, but none of the receivers will know who the other recipients are. In the general case, one has to subscribe to a mailing list, but sometimes mailboxes are included manually without their owners’ consent. Depending on the given mailing list management software, you may also be able to include new subscribers, so users cannot join your mailing list unless you authorize their signup request. The mailing list feature is exceptionally useful if you would like to send newsletters on a regular basis or some other sort of periodic notifications to customers, considering that you’ll have to send out one single e-mail and all of the mailing list subscribers will get it momentarily. This way, you won’t have to type in a lot of mailboxes manually.