On Fri, 23 Jul 1999, Pollywog wrote:
>
> On 23-Jul-99 Pollywog wrote:
> > I just received some spam with no $h_sender:
> > Is there a way to put such an address in a filter of some sort, if it
> > cannot be rejected by that header?
>
> Is there a way to filter when $h_sender: is null?
> That might do the trick.
if $h_sender: is "" then ...
However, it is legal, nay, common, for messages to have no Sender:
header. RFC 822 encourages the use of Sender: only if its content is
different to From:, and discourages its use otherwise.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
