A standard for encoding attachments in mail messages. Files with MIME can have numerous, unessential pages. 1
The unique identifier used to describe which file type is conveyed across a MIME-based protocol such as MIME e-mail or HTTP. The MIME type, contained in certain fields of an email, indicates what kind of computer file is attached to the email so that the system knows how to open the file or otherwise process it. Mime types names conform to an international standard. Registration of MIME types is explained in RFC 2048.