Business communication can be done easily without any security issues, and it is faster than any other forms of communication. Also, contacts can be saved easily with the help of emails, and the past messages can be checked frequently rather than saving the data in the local server. Email is used for many different purposes, including contacting friends, communicating with professors and supervisors, requesting information, and applying for jobs, internships, and scholarships. Depending on your purposes, the messages you send will differ in their formality, intended audience, and desired outcomes.