In providing contextual hints in an electronic message, a mail client receives a command to create a reply message to an original electronic message with original text. Topic(s) that summarize context(s) in the original text are determined and displayed in a body of the reply message as temporary text. The mail client receives response text corresponding to the topics entered into the body of the reply message. When displayed, the topics function as contextual hints for the original text. The user may use these contextual hints while composing the reply message, reducing the need for the user to scroll or jump to the original text in order to view the content to which the user is replying. When a command to send the reply message is received, the display of the topics is removed, and the reply message is sent with the response text and without the topics.