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Hy, I’m looking for a free form builder add-on (free because it will be used in non-profits) that allows to verify email address by sending a confirmation mail first – requiring the user to click special link before the form content is mailed. Abandoned “Caldera Forms” had an “Email Verification” add-on. If no current add-on has this feature which one has best API and hooks (and documentation) to realise this by myself? Tips?
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