MIME ISO-2022-JP/ISO8859-1 decode. (DEFAULT) To see ISO8859-1 (Latin-1) -l is necessary.
-mB Decode MIME base64 encoded stream. Remove header or other part before conversion.
-mQ Decode MIME quoted stream. ‘_’ in quoted stream is converted to space.
-mN Non-strict decoding. It allows line break in the middle of the base64 encoding.
-m0 No MIME decode.
-M MIME encode. Header style. All ASCII code and control characters are intact.
-MB MIME encode Base64 stream. Kanji conversion is performed before encoding, so this cannot be used as a picture encoder.
-MQ Perfome quoted encoding.