Chapter 4. Domino 6 Server anti-spam features
45
Figure 4-8 Delivery Failure Report for messages denied using a Server rule
As you can see from the two delivery failure reports, messages failed using the
inbound sender controls provided more detail to the sender regarding why the
message was failed. Either method of denial will work with a sender’s internet
address; the method you choose is up to you.
4.3 Controlling delivery of spam
Not all spam can be stopped on the Listener before it is placed in the mail.box.
Domino 6 Server offers tools to further control the delivery of mail messages in
your Domino environment. You can control which messages are delivered to
end-user’s mail files.
4.3.1 Server mail rules
Server mail rules allow you centrally control the messages that are routed into
your environment. After a message is placed into a mail.box by the SMTP server,
server mail rules are applied by the router before delivering messages any
further. It is most powerful to deny messages from know spam sources by using
inbound sender controls, since then the messages are stopped at the listener.
The power of the server mail rules lies in the possibility of using different
conditions and factors against which the messages should be checked. You
configure server mail rules to prevent spam messages from ever reaching your
end-users.
Enabling server mail rules should be thoroughly planned prior to implementation.
Each rule that is created will act on messages received by the server. Server mail
rules will affect
all
messages sent to the server, including messages sent from a
Tip:
We recommend that you block mail from unwanted sender addresses
and domains by using inbound sender controls instead of server mail rules.
They will perform better and will prevent any data from being transferred at all
in many cases.
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