Internet mail / replication

When notes client Replicates email from internet, where can I find an option to select removing the mail off the internet server? I have been downloading my email to my inbox, but just found out I have been leaving a copy on my mail server and want to delete after I replicate??

Subject: internet mail / replication

This is a POP setting found in your local address book. Open your local address book (names.nsf on your harddrive), click Advanced\Accounts. Find the POP account that you want to change and open it. Click on the second tab, Protocol Configuration to change.