[Dovecot] How to create rules?

[Peter Fern]

Romeo Theriault wrote:
> Hi, I have dovecot installed and working fine. I would like (server
> side) a rule runs on all messages and if it finds certain words in the
> message it will run a script which will send a new email.
>
> How can I create these rules? Do I need another piece of software?
>
> Thank you,
>
> Romeo

If you actually need to run an external script to create a new mail,
rather than forwarding the incoming mail you will probably need to look
at procmail, since sieve doesn't allow you to execute external scripts.