Joseph on "[Plugin: Visual Form Builder] is this possible?"

Hello Ruben,

Happy Monday, yes this would be possible using our notifications addon and integration with Mailchimp where double opt in though mailchimp can be configured. So it would require our pro version. Currently there is not a way to opt-in with VFBPro as a stand alone. Good idea though, we may consider it for future development.

Thanks,
Joseph
VFBPro Support