Request: Trigger sending of double-opt-in / confirmation mail

[digitalbricks]

In the JSON data for the /api/v2/subscribers endpoint, for adding new subscriber, there should be an (optional) attribute for triggering the sending of the confirmation email (double opt-in) to the new subscriber. Such as "request_confirmation" : true.

This would be very helpful when e.g. using a custom subscribe form on a business website which interacts with phpList via the new API. Especially for websites in the European Union where a double-opt-in is mandatory.