Problem solved. Here's the answer (for the archives) # block all SMTP traffic from inside to out while letting the server # through ipfw add allow tcp from any to me 25 ipfw add allow tcp from me to any 25 ipfw add deny tcp from any to any dst-port 25 This prevents any host within the network from sending directly to an SMTP server outside the network. Thanks to "D J Hawkey Jr <[email protected]>" for helping me out with this. Cheers Tim -- Tim Aslat <[email protected]> Spyderweb Consulting http://www.spyderweb.com.au Phone: +61 0401088479 _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-security To unsubscribe, send any mail to "[email protected]"