Small bug / issue with workaround
In the Sitework e-mail overview you cannot delete the catch all e-mail address. To be clear if you have one set, and you want to delete it, I think it should be possible to delete the mail adress in the input box and click on update. But now you will get an error ; ? Changes NOT saved:
The destination e-mail address was not valid.
The workaround ofcourse is to delete this catch all from the Aliases interface. Yet I do not think this is clear for technically challenged people (and my customers).