Hi everyone, Recvently I configured ISA server to pass through mail on an SMTP port number, through a Router/Firewall to an Exchange 2000 server inside my network. At this stage I use a Modem to go to my ISP, I don't have many users online during the day so for now the Modem is fine. However whenever my modem looses its connection, my mail port goes to sleep and the only way I can wake it up is to dleted the SMTP mail wizrd rule and re-configure it. As you could imagine this gets really anoying after a while. Is this a rpoblem with my router/firewall configuration, or does ISA server has a problem. Please hlep me. Cheers, Jamesey