Salesforce.com's literature says that you can have Email to Case run against multiple email addresses however their limited technical documentation does not say how to do this.  I have searched the forums and Google and can't find out how to do this.  My current workaround is to use multiple Email to Case clients on a server.  Can someone tell me how to make one client run against multiple addresses?

Salesforce.com's literature says that you can have Email to Case run against multiple email addresses however their limited technical documentation does not say how to do this.  I have searched the forums and Google and can't find out how to do this.  My current workaround is to use multiple Email to Case clients on a server.  Can someone tell me how to make one client run against multiple addresses?