On Wed, 28 Jan 1998, Lee McLoughlin wrote:
> I've read throught filter.txt and haven't found a way to do this.
>
> What I'd like to do is run an external filter program from my .forward
> over incoming email to decide if its spam and use the exit code (or
> output?) in a conditional. This is to decide wether to junk the message
> or use the remaining rules in my .forward.
There is no way to do this. The filter doesn't do deliveries, it sets
up deliveries. The deliveries all happen at a later time, in separate
processes (in the case of local deliveries). It is then far too late to
use the results of (e.g. a pipe) delivery to affect the forward file.
All I can suggest is that you do something like
if $h_X-been-here-before is "" then
pipe /your/script
finish
else
other rules
endif
where your script either junks the message, or adds an X-been-here-before
header and sends it back to you. A messy fudge.
I'll think about the problem, but it doesn't fit well with the way
things work.
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