Hi all, I have an email content scanner between my Exchange box and my email gateway (ISA IN FIREWALL MODE). I have set up, via the Secure Mail Server wizard, this is represented below : mymailserver -FWD/RCV ON 25 TO- mycontentscanner -FWD/RCV ON 25 TO- ISA -PUBLISH/RCV ON 25 Ican telneton 25 into my content scanner to ensure inbound delivery, but cannot telnet out on 25, my ISP informs me an etrn request is needed to dequeue our mail but this fails also. I can however ping our ISP mail server from the content scanner. Do I need to do anything else ? Please help Joe