Some of our task notifications are more complicated and involve HTML, data references, etc. Right now when reminders are sent, a different email is sent, and the user is left to go back and find the original email. It would be better to just change the subject or have the ability to append text to the existing email instead of having to maintain the email in two places. I would want the same for redirects, although I am not aware of a way to customize redirect emails at all.