RFC 822 – Format of Text Messages
2. Null Line for Separator
Please, don’t forgetthe watermelon and the
Message Header Fields
- rigid format for each:
fld-name ":" [ fld-body ] CRLF
Message Body
- no format specified
- no provision for encoding structured text, drawings, facsimile, speech, or other non-text content
- RFC 821 requires 7-bit US-ASCII, all lines <= 998 octets + CR(13) + LF (10), and no NULs (00).