Message encoding and other information

Applicable protocol:: Mail (http://www.rfc-editor.org/rfc/rfc2822.txt)
Status:: experimental
Author/Change controller:: Albert K. Costanzo (mailto:AL@AKC.COM)
AKC Consulting Inc..
Specification document(s):: http://www.rfc-editor.org/rfc/rfc1505.txt
Related information:: Used in several different ways by different mail systems. Some use it for a kind of content-type information, some for encoding and length information, some for a kind of boundary information, some in other ways.