> If your ISP are so hopeless that they think blocking all outbound mail from > their own customers is the only to control traffic I can only suggest you > change ISP's ASAP. This is the equivalent of "the client services telephone > hepldesk is mowed under with calls so we will just turn off the phone and > ignoe all the calls"!!!!! Actually, I would prefer that all ISP's block all outbound port 25 except for business lines AND when a user documents the need to have outbound port 25 open. You must not be paying attention to the fact that 90% of the current viruses AND spam is coming directly from compromised home computers. If their ISP's were blocking outbound port 25... John Tolmachoff Engineer/Consultant/Owner eServices For You