⸺ by Charles Iliya Krempeaux
E-Mail is a messaging system and application generally used for communication between people — that is (indirectly) inspired by mail and post-office system.
E-Mail is a copy of from the bulletin board system (BBS) computer networks.
E-Mail is one of the most popular applications on the Internet.
E-Mail is an early (online) social-network on the Internet and is still in heavy use today.
Webmail
Since the late 1990s and early 2000s there was a transition of people, who used e-mail, to use e-mail client with based front-end s — called webmail.
While still very popular, webmail has declined a bit, as e-mail applications (without based front-end s) for mobile-phones have also become popular.