i-Autoresponder is intended for marketers who have an established list of permission-based opt-in email addresses. Every email sent through i-Autoresponder contains a mandatory remove link at the bottom of the message. A subscriber may simply remove their email address permanently from a list by clicking the link and selecting the "unsubscribe" function. The remove link may not be disabled by any user, thus every recipient of an email from the i-Autoresponder system may easily and quickly opt to no longer receive emails from a list. Email addresses placed on your "remove list" may not be added to your list again.