You can't publish a service that's already in use on the external interface. From the event logs you send, it's clear that some other app or service has already claimed TCP-25 on the ISA external IP. Check this out: http://www.isaserver.org/shinder/tutorials/socket_pooling.htm http://www.isaserver.org/shinder/tutorials/publishing_a_mail_Server_with_isa _server.htm Jim Harrison MCP(2K), A+, Network+, PCG ----- Original Message ----- From: "Umberto Neto" <betosanasa@xxxxxxxxxxx> To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx> Sent: Monday, August 27, 2001 4:12 AM Subject: [isalist] Error 14163- wasn't able to establish an SMTP connection http://www.ISAserver.org ******* Windows 2000 Event Viewer error : ********************* Server publishing rule [Mail wizard rule - SMTP Server. Published IP: 200.205.127.194] that maps 10.1.11.0:25 TCP to 200.205.127.194:25 for protocol [SMTP Server] failed because the port on the external interface is being used by another application. The Firewall service failed to bind socket for the server on the firewall since another process is using the same port. Check for any other process using the same port and terminate if necessary. ******* Message from yahoo.com. : *************************** Unable to deliver message to the following address(es). <administrador@xxxxxxxxxxxxx>: Sorry, I wasn't able to establish an SMTP connection. (#4.4.1) I'm not going to try again; this message has been in the queue too long. message from yahoo.com. Unable to deliver message to the following address(es). <administrador@xxxxxxxxxxxxx>: Sorry, I wasn't able to establish an SMTP connection. (#4.4.1) I'm not going to try again; this message has been in the queue too long. Can you help me ?????????? Thanks Umberto ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: jim@xxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')