lib/ews/types/item.rb
def forward(opts = {})
      msg = Template::ForwardItem.new opts.clone
      yield msg if block_given?
      msg.reference_item_id = {id: self.id, change_key: self.change_key}
      dispatch_create_item! msg
    end
def forward(opts = {})
      msg = Template::ForwardItem.new opts.clone
      yield msg if block_given?
      msg.reference_item_id = {id: self.id, change_key: self.change_key}
      dispatch_create_item! msg
    end
If you want to add to the body set #new_body_content. If you set #body
 it will override the body that is there.
 @see MessageAccessors#send_message for options
   additional options:
     :new_body_content, :new_body_type
 @example
   item.forward do |i|
     i.new_body_content = "Add this to the top"
     i.to_recipients << 'test@example.com'
   end