We have an Exchange Server 2000 and were on a few blacklists. To prevent this from happening again, I would like to block outbound port 25 traffic from the workstations but obviously I would still like to be able to send out mail through our exchange server. We're using a Linksys Netopia Model 4522 T1 Router at this time. How we can configure it to do this? Filters?
Thanks in advance!