What error do you get on the IIS6 SMTP relay
server?
Via telnet, in the logs (IIS SMTP and App/System), and when
sending a message there? Are the messages queued up on the relay
server? Apply any patches recently? Make any firewall/router
changes?
Al
From: [EMAIL PROTECTED]
It's likely that you were permitting this host to relay through your Exchange
by adding it to the Relay list in the Properties of your SMTP Virtual in
Exchange. So, it's now likely that the host's IP has changed and you have not
updated your Relay list.
Since Exchange disallows Relay by default
