class Mail::Message

def original_filename
  message = 'Message#original_filename is deprecated, please call Message#filename'
  ActiveSupport::Deprecation.warn(message, caller[0,2])
  filename
end

def set_content_type(*args)
  message = 'Message#set_content_type is deprecated, please just call ' <<
            'Message#content_type with the same arguments'
  ActiveSupport::Deprecation.warn(message, caller[0,2])
  content_type(*args)
end

def transfer_encoding(value = nil)
  if value
    message = 'Message#transfer_encoding is deprecated, ' <<
              'please call Message#content_transfer_encoding with the same arguments'
    ActiveSupport::Deprecation.warn(message, caller[0,2])
    content_transfer_encoding(value)
  else
    old_transfer_encoding
  end
end

def transfer_encoding=(value)
  message = 'Message#transfer_encoding= is deprecated, ' <<
            'please call Message#content_transfer_encoding= with the same arguments'
  ActiveSupport::Deprecation.warn(message, caller[0,2])
  self.content_transfer_encoding = value
end