Does anyone know of a good hosted alternative to Postfix Admin (http://postfixadmin.sourceforge.net/)?<p>We pretty much only use the aliases support to specify email aliases for <i>lots</i> of client domains.<p>I've looked at Dyn's Email Fowarding (http://dyn.com/email/dyn-email-forward/), but I'm not convinced since their site is so vague on how exactly it works and on what the basis for the pricing is (per domain or what).