A Single Opt-in occurs when someone decides to join your list and receive Email communications from your business, but don’t confirm (double opt-in) their action. It is always recommended that you get people to verify their action, before including them in your Email campaigns.
Already used by organizations world-wide a Project Management Tool!
Woffice comes with several built-in demos that you can install in one single click. You can test the available demos here and feel free to challenge any presented feature.