InboxKitten
An Open-source Disposable Email (powered by serverless kittens 🐱)
git clone "https://github.com/uilicious/inboxkitten.git"
cd inboxkitten
./config.sh
./build.sh
firebase login
./deploy/firebase/deploy.sh

NOTE: This does require the use of mailgun. I am unsure of their privacy measures.

I have yet to see an open-source release for this, this is dcfinitely something that can cover a large use-case.

GitHub - uilicious/inboxkitten: Disposable email inbox powered by serverless mailgun kittens
Disposable email inbox powered by serverless mailgun kittens - GitHub - uilicious/inboxkitten: Disposable email inbox powered by serverless mailgun kittens