I have been trying to figure this out from the docs, but it isn’t clear.
In other services for email forwarding you can setup rules like:
This allows you to give out a per site email, but not need to setup a redirection rule for each. Then if you see an email you know who shared it and where it came from.
The catch all wouldn’t allow this as [email protected] would get sent to the same catch all, but that isn’t the right account.
Other services like Improvmx allow this. It is a great feature.