You’ll definitely need something like Zapier for this, that said, it’s fairly simple.
- Create a new Zapier zap
- Have it trigger on a Webflow form submission
- Add a step to send this out to an email service (ex: MailChimp, ConvertKit, etc…)
- Have the mail service auto-respond
This will also keep the email sent via Project Settings going to your inbox, if you don’t want that, just blank out the field with your email in it.