class Mail::Address

def display_name(output_type = :decode)

a.display_name #=> 'Mikel Lindsaar'
a = Address.new('Mikel Lindsaar (My email address) ')

Returns the display name of the email address passed in.

def display_name(output_type = :decode)
  parse unless @parsed
  @display_name ||= get_display_name
  Encodings.decode_encode(@display_name.to_s, output_type) if @display_name
end