Creates a new email in reply to self. Sets the In-Reply-To and References headers for you automagically.

Example:

mail = TMail::Mail.load("my_email")
forward_email = mail.create_forward
forward_email.class         #=> TMail::Mail
forward_email.content_type  #=> "multipart/mixed"
forward_email.body          #=> "Attachment: (unnamed)"
forward_email.encoded       #=> Returns the original email as a MIME attachment

Source Code

# File action_mailer/vendor/tmail-1.2.2/tmail/interface.rb, line 1083
def create_forward
  setup_forward create_empty_mail()
end