Parse a MIME message that's already in-core. A scalar which holds the message. A ref to a scalar which holds the message. This is an efficiency hack. A ref to an array of scalars.
Returns undef on failure.
For efficiency, if you know you'll be parsing a small amount of data, it is probably best to tell the parser to store the parsed parts in core. Returns the parsed entity, or undef on error. Simply give this method the paths to the respective files. May be an issue if your messages are large. Returns the parsed entity, or undef on error.