You don't need your own SMTP server for this. I'm working on a project with a similar need at the moment and Mailgun's Email Routing feature is exactly what you

You don't need your own SMTP server for this. I'm working on a project with a similar need at the moment and Mailgun's Email Routing feature is exactly what you need. https://www.mailgun.com/products/send/inbound-routing/ https://www.mailgun.com/products/send/inbound-routing/