as said above I want to create temporary email addresses which only forward a received message to another (external) email address. When possible without haveing to store the entire mail on the server. Can that be realized? Thanks in advance for your comments.
I'm using qmail on Debian etch and want to store the aliases inside a database (mysql or maybe redis). It would be enough when I get a rough prototype working. Working out specifics like file/db IO, security or performance is secondary in the first step.