Show HN: I wrote an email app that accepts only one sender per inbox

A developer has created an email app that allows users to create infinite inboxes, including dynamic inboxes that self-create with a suffix. The app supports three types of inboxes: one sender, temporary, and prefix. One sender inboxes lock to the first domain to send email, while temporary inboxes last for a specified duration before bouncing. Prefix inboxes create a new one-sender inbox locked to the sender of the first email with a declared prefix and suffix. The app requires users to bring their own domain and AI server, and offers forwarding capabilities. The developer is seeking help with testing the app.