Martijn Grendelman wrote:
> I have been looking at several ways to incorporate SA system wide.
> One of the ways I have seen several times, is the use of a spamcheck transport (and > router):
[snip: implementation via a pipe transport]
> Now I was thinking: wouldn't it be easier to just use
> transport_filter on existing transports? I guess I must be missing
> something. Please enlighten me :-)
You can ofcourse use Exim 4's local_scan() function to do spam checking
at SMTP time. That way, you can reject it immediately or base routing
decisions on it's results.
