Bulk mail broadly refers to mail that is mailed and processed in bulk at reduced rates. Mail, or post, is a method for transmitting information and tangible objects wherein written Documents typically enclosed in Envelopes and also The term does not denote any particular purpose for the mail; in particular, it is not synonymous with "junk mail. This word has distinct meanings in other fields see Denotation (semiotics and Connotation and denotation. "
As an example, in the United States, the United States Postal Service defines bulk mail broadly as "quantities of mail prepared for mailing at reduced postage rates. The United States of America —commonly referred to as the " The preparation includes presorting and placing into containers by ZIP code. The ZIP code is the system of Postal codes used by the United States Postal Service (USPS The containers, along with a manifest, are taken to an area in a post office called a bulk mail entry unit. A post office is a facility authorized by a Postal system for the posting receipt sorting handling transmission or delivery of Mail. The presorting and the use of containers allow highly automated processing of the mail, both in bulk and piecewise, in processing facilities called bulk mail centers (BMCs).
Although bulk mail, junk mail and admail are, strictly speaking, not synonymous, the terms are used in common parlance to refer to unsolicited invitations delivered by mail (typically, but not invariably, at bulk rates) to homes and businesses. Direct mail, also known as junk mail, advertising mail or admail, is the delivery of advertising material to recipients of postal Mail.