If you use the internal SMTP server publishing method, you'll also gain the ability to route the mail through the ISA SMTP filter / message screener if the relaying SMTP server is IIS- or Exchange-based. Jim Harrison MCP(NT4, W2K), A+, Network+, PCG http://isaserver.org/authors/harrison/ Read the books! ----- Original Message ----- From: <natahi@xxxxxxxxx> To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx> Sent: Tuesday, January 08, 2002 02:46 Subject: [isalist] SMTP RELAY Scenario http://www.ISAserver.org What is the best solution to implement a smtp relay ( antivirus ) and what is the difference in the two following cases ? 1. By using a truth trihomed DMZ. The smtp relay is in the DMZ and will relay towards internal smtp server. 2. By using server publishing method. The smtp relay is in the internal network and will relay towards the internal smtp server. ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: jim@xxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')