I've recently setup the SMTP Service in II4.0. However, when I try to test
the outbound mail with Telnet program, I found that the smtp server can't do
the relay with our Domino server. I've granted the permission to this IIS
server but the below error keeping occur in the log of the IIS server. Does
anybody have this experience. Since I'd like to know this problem is related
to the Domino or IIS.
"Message delivery to the remote domain 'aaa.com.hk' failed. The error
message is 'An SMTP protocol error occurred.
'. The SMTP verb which caused the error is 'RCPT'. The response from the
remote server is '554 Relay rejected for policy reasons"