1 ProxSMTP is a flexible tool that allows you to reject, change or log
2 email based on arbitrary critera. It accepts SMTP connections and
3 forwards the SMTP commands and responses to another SMTP server. The
4 'DATA' email body is intercepted and filtered before forwarding.
5 ProxSMTP can be used as a transparent proxy to filter an entire
6 network's SMTP traffic at the router.