E-mail (short for electronic mail; often also abbreviated as e-mail,email or simply mail) is a store and forward method of composing,sending,storing,and receiving messages over electronic communication systems.The term "e-mail" (as a noun or verb) applies both to the Internet e-mail system based on the Simple Mail Transfer Protocol (SMTP) and to X.400 systems,and to intranet systems allowing users within one organization to e-mail each other.Often these workgroup collaboration organizations may use the Internet protocols or X.400 protocols for internal e-mail service.E-mail is often used to deliver bulk unsolicited messages,or "spam",but filter programs exist which can automatically delete some or most of these,depending on the situation.
Business letter
A business letter is a letter written in formal language (English),usually used when writing from one business organization to another,or for correspondence between such organizations and their customers,clients and other external parties.The overall style of letter will depend on the relationship between the parties concerned; however,there is a general consensus on style,for example,Business letters usually follow a left-blocked format,other points of general style are outlined below.
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