Originally Posted by FriarTed
Is there is an e-mail program out there where you can set an auto response for a particular person in a specific amount of time? So that you can send them reminders in say, two months, when it's time for their next appointment.
seems like it fits your description, although I've not used it.
I have used nudgemail
to email me at the appointed time with the body of the email containing the reminder text and the email address to which to send it. That way I would be reminded of the pending task. But you could accomplish this by including both the remindee and yourself on the auto-reminder, thus cutting out a step.