RFC 1153 (rfc1153) - Page 2 of 4
Digest message format
Alternative Format: Original Text Document
RFC 1153 Digest Message Format April 1990 Subject line by listname, the key word, Digest, the volume number (usually a sequential number either starting at 1 or the last two digits of the year and incremented by one starting with the first issue of the next calendar year), and an issue number starting at one for the first issue of a new calendar year. The body of a digest message must consist of a Preamble, one or more enclosed messages, and a Trailer. The Preamble usually contains a table of contents consisting of the subject line contents of the enclosed messages, usually indented or centered, and also may contain brief administrative or other announcements. The Preamble must be separated from the remainder of the message by a line of 70 hyphens followed by a blank line. Each enclosed message is a conventional message consisting of a header and body, separated by a blank line. If they exist in the original message header, the following lines must be retained as-is in the reconstructed header: Date:, From:, To:, Cc:, Subject:, Message-ID:, and Keywords:, rearranged to appear in that order. Retaining the Summary: line is optional. Lines include continuation lines as defined in the RFCs. All other header lines should be discarded, especially Received lines. All leading and trailing blank lines should be removed from the message body. The message body may be scanned to replace with a blank the first character of any lines of exactly and only 30 hyphens. Each enclosed message must be separated from the the remainder of the digest message by a blank line before and after a line of 30 hyphens. The Trailer immediately follows the blank line of message separator following the last enclosed message. The Trailer consists of two lines. The first line must begin with the words, End of, followed by the listname a blank and the word Digest which is usually followed by volume and issue number on the same line. The second and last line of the Trailer and the entire message is a line of asterisks serving to underline the line immediately above it. Example The following example serves as a template for a digest message conforming to this memo. It contains a header, and a body consisting of a Preamble, two enclosed messages, and a Trailer. fqhn means Fully Qualified Host Name. The Date: lines are examples only. Wancho
