Utilizing elixir, phoenix and google form, a MVP was created: https://quicknotify.app.
Before investing more time into app, we wanted to gauge the interest for such a solution. We were able to determine the steps to validate the idea by reached out IH community https://www.indiehackers.com/post/idea-validation-email-forwarding-54c8187e6a.
The MVP consist of a landing page to captured potential customers' email address. The mvp also has an api endpoint which is currently is utilized by my client's website for forwarding emails.