If set to "Email" this allows the "Unsubscribe email handling" email account to be automatically read and processed for unsubscribe email requests. Requests to this address will disable all optional outgoing emails for that user.<br />
<br />
This option will read and remove emails from the specified account when processing. It MUST be directed to an account whose sole purpose is collecting unsubscribe request emails from this XenForo installation. A value must be entered for the email address in the "Unsubscribe email handling" option.