What would cause the SMTP port on a particular IP address to stop responding? I'm using IPSentry to monitor ports on my servers. It seems that the firewall's stops responding on a particular IP address for the SMTP service. Using Remote Desktop, I find that I'm able to telnet to the SMTP port on the mail server (using the local IP address assigned to it) but the firewall is not responding to the Internet IP. It seems to fail about once/hour. I've got the firewall routing mail for 3 separate IP addresses but it is failing only on one IP address. Any suggestions or ideas come to mind? Thanks in advance for your time and consideration. Paul L. _____ From: Virden, Jerry (LIB) [mailto:JVirden@xxxxxxxxxxxxxxx] Sent: Thursday, July 22, 2004 4:05 PM To: [ISAserver.org Discussion List] Subject: [isalist] Wins http://www.ISAserver.org What would cause wins to stop responding to name resolution requests so that the firewall clients could not find the ISA box anymore?