fltr.pw is a special project similar to Apple's "Sign In With Apple" and other services to obfuscate a user's real email address.
fltr.pw allows registered users to register any {name}@fltr.pw to forward to their real email address. This helps for better tracking of leaked email addresses.
Currently fltr.pw is in Alpha stage and open to invitation from registered users only. We hope to expand make this service public in the near future.