RFC 1521:MIME (Multipurpose Internet Mail Extensio...
RFC-Ref

LF


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... ASCII characters CR (13) and LF (10) which, taken together, in this order, denote a line break in RFC 822std11(-> 2822prop) ...


... binary data are encoded in quoted- printable, care must be taken to encode CR and LF characters as "=0D" and "=0A", respectively. In particular, a CRLF sequence in binary data ...
... characters with particular significance to SMTP (e.g., ".", CR, LF) and to the encapsulation boundaries defined in this document (e.g., ...


... CRLF convention -- systems are known that use plain CR, plain LF, CRLF, or counted records. The result is that isolated CR ...
... CRLF, or counted records. The result is that isolated CR and LF characters are not well tolerated in general; they may be lost or converted to delimiters on some systems, and hence must not be relied on. ...



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