Subscription notification email checkbox not present in Sitecore 8 WFFM Save Action

With Web Forms for Marketers 8.0 (WFFM) module, "Subscribe to recipient list" save action was replaced with new save action, "Add Contact To Contact List"

In "Subscribe to recipient list" save action in older WFFM module, there was a "send confirmation email" checkbox. When this checkbox was clicked, sitecore will send a subscription confirmation email to the user.

But, in the latest WFFM 8.0, "Add Contact To Contact List" save action does not have that checkbox option.

WFFM Older Versions - Subscribe to Recipient List save action

WFFM 8.0 - Add Contact to Contact List save action

So, the way to achieve this in Sitecore 8.0 is to use Send Email Campaign Message action with the "Add the Contact to Contact List" save action. (Sitecore Support has helped/confirm this after reporting the issue)

Hope this helps to someone!