Most custom email domain hosts should have an option to allow you to catch all emails *@example.com (e.g. Protonmail has this option for paid plans [1]) I have

Most custom email domain hosts should have an option to allow you to catch all emails *@example.com (e.g. Protonmail has this option for paid plans [1]) I have heard some people say this attracts a lot of spam since you'll receive emails from any and all usernames@example.com. You'll probably need to create custom email filters and whitelist emails that you want to receive and trash the rest. [1] https://protonmail.com/support/knowledge-base/catch-all/ https://protonmail.com/support/knowledge-base/catch-all/