Please expand your email filters capabilities. I should have the ability to set a filter to "always delete" (i.e., without going to spam or anywhere else) emails having X-Originating-Ip: field, a HELO field or a Return Path field having a certain value, or an email where any header (even one) matches a specific value. For example, I never, ever, ever want to receive any emails having any header corresponding to an IP address of "192.3..." or having a HELO value containing specific words.