On Mon, 26 Mar 2001, Dr. Douglas Gray Stephens wrote:
> I was considering modifying the system filter to use
> if $header_from: contains "@sexyfun.net" then
> if $return_path is "" then
> seen finish endif
>
> fail text "This message has been rejected since it has\n\
> \tthe signature of a known virus in the header."
> seen finish
> endif
>
> so that copies of the virus that have a null return path are
> discarded.
Seems very reasonable.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.