Answer:
Email etiquette refers to the principles of behavior that one should use when writing or answering email messages. It is also known as the code of conduct for email communication. Email etiquette depends upon to whom we are writing- Friends & Relatives, Partners, Customers, Superior or Subordinates
Difference Between Etiquette and Netiquette is that Etiquette is the simple requirements needs for social behavior while Netiquette, is the code of acceptable behaviors users should follow while on the Internet.