What is E-mail? Md. Saifur Rahman E-mail is an electronic mail which is composed of several letters and anyone from any place of the world can communicate through e-mail.You may likeDo I need car insurance?What is car insurance?How could I get cheaper car insurance?What is auto insurance?Why Adulterant food is the barrier to sound health?What are the producers?What are food preservatives?What is food chain?What is tertiary consumer?