You also need a packet filter for TCP-53 outbound. Exchange and IIS SMTP services (the same thing, really) use that for MX record lookups. Jim Harrison MCP(2K), A+, Network+, PCG ----- Original Message ----- From: "Arsen Mkhitarow" <mag@xxxxxxxxxx> To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx> Sent: Friday, September 07, 2001 5:00 AM Subject: [isalist] Exchange Server on the ISA Server Computer http://www.ISAserver.org I can't configure Exchange Server on the ISA Server Computer. When I enable packet filtering, recieving mail immidiatly stops, though I still can send mail. I created packet filters for ports 25 and 110, according to scenario, but it doesn't help. I need more detailed instructions. ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: jim@xxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')