Hi Meindert-Jan,
Please follow all instructions described in these articles:
1. https://nicepage.com/doc/article/25066/how-to-create-a-simple-html-contact-form-in-nicepage-website-builder
2. https://nicepage.com/doc/article/4216/how-to-send-emails-with-nicepage-form
And let us know if you need our further assistance
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Sincerely,
Susanna I.
Nicepage Support Team
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