To prevent spammers from using the
IMSS MTA as a relay for spam, configure relay
control by adding the mail domains on your network to the
Incoming Message
Settings list. When
IMSS receives a
message, it looks at the final destination of the message and compares it to this
list.
IMSS discards the message under the following
circumstances:
-
The destination domain is not in this list
-
The parent domain of the destination domain is not in this list
-
The host is not on the Permitted Senders of Relayed Mail
list
Incoming message settings are different from message delivery domain settings.
For more
information, see About Message Delivery.
