IBM AH0QXML - Lotus Domino Messaging, User Manual

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Chapter 4. Domino 6 Server anti-spam features
57
On a Domino 5 server, the Deny entry takes precedence, so that the named host,
myhost.iris.com, is not a valid relay source. The named host cannot relay to any
domain, even to allowed domains.
On a Domino 6 server, the Allow entry takes precedence. In the preceding
example, myhost.iris.com is allowed to relay to hotmail.com, but not to any other
destination.
Enhancements to Domino 6, specifically the inbound relay enforcements, can
further restrict the relay capabilities of internal host. More information regarding
these enhancements can be found in 4.4.2, “Inbound relay enforcement” on
page 59.
Configuration of inbound relay controls
1. In the Administration client click the Configuration tab and expand the
Messaging section.
2. Click Configurations.
3. Select the configurations settings document for the server you want to
administer and click Edit Configuration.
4. Click the tabs in the following order: Router/SMTP
→
Restrictions and
Controls
→
SMTP Inbound Controls; navigate down to Inbound Relay
Controls.
5. Double-click the document or click the Edit Server Configuration button to put
the document in edit mode.
Tip:
When you upgrade a Domino 5 SMTP mail server, you have the option to
not accept this change if you do not want to reconfigure your upgraded mail
servers. Lotus Domino 6 provides the NOTES.INI setting
SMTPRelayAllowHostsandDomains
to allow the server to follow the Domino 5
behavior. Set this value to 1 to allow the Deny entries to take precedence. The
default value for this setting is 0.
SMTPRelayAllowHostsandDomains=1