E-mail is a method for exchanging digital messages between an author and recipients. It allows for communication in many settings for a variety of purposes such as sharing information, brainstorming solutions, keeping records, and coordinating group work. E-mail operates by storing messages on servers so that users do not need to be online simultaneously; they simply need brief connections to send and receive messages. Some key advantages of e-mail include low cost, ease of referencing past messages, global accessibility from any internet connection, and speed of delivery. However, disadvantages include potential for emotional responses, information overload, lack of personal touch compared to other forms of communication, and misunderstandings if messages are not carefully composed and read.