Adding Email Automation to a Submission Form

Site URL: https://www.schmidtresources.com/marketing-project-request

We have a few form blocks on our site that we'd love to have email automations triggered from after submission. We've done that with products on our store using Squarespace's campaigns add on, but that only works for store products or newsletter sign-ups.

Does anyone know of a way/product to trigger automatic emails after a form is submitted? We have the pop-up that says "thanks for your submission" and all that, but our clients routinely miss that and sending an email follow up would be awesome.

https://www.schmidtresources.com/marketing-project-request

I'm looking for the same thing. I've a 'sign-up to waitlist' form and would like to send an automated 'Thank You' email with expectations on the project I'm launching. If there is a way to do this, I'm yet to find how. Would be great to find a way to do this.