Unline Text property
which returns contents of message text (or part text) "as is", this
property will decode text (if it is encoded, usually with
Quoted-Printable or Base64 encoding) and present it to you as a
String data.
EncodingType argument is optional. You can set it to
desired value if you want to force wodPop3 to use specific decoder.
But, usually wodPop3 will detect encoding and will use it
automatically.
This property is available only if full message body was
retrieved, not if only headers were retrieved.