Adam Osuchowski wrote:
> Transport filtering set up by transport_filter option is not so good solution
> on heavy load mail servers. Messages filtering through external service
> accessible via unix or inet socket (in style of readsocket) would be more
> efficient then spawning external command and filtering through pipe on every
> mail separately. Is it planned such a functionality? It would be nice to see
> it.
>
>
Did you look at dlfunc (in the Docs "11.5 Expansion items", ). With this
you can call C code from within exim. Not exactly what you asked for,
but with this you can do a lot I think.
http://www.exim.org/exim-html-current/doc/html/spec_html/ch11.html#SECTexpansionitems
Oliver