In the normal view mode, you can review the messages which were processed by the Mail Filter and were accepted or rejected - just like you would do in a regular mail client program.
Settings window:
Settings include various rules defining when to accept and when to reject the messages, as well as other options.
Settings may be set separately for different serviced mailboxes and for different expected recipients for each mailbox. This allows you to process differently any mail which was redirected to your serviced mailbox or mailboxes from other e-mail addresses you may have.