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Figure 4-5 Inbound connection controls
6. Make the desired changes to the Inbound Connection Controls and click Save
& Close.
Enabling "Verify connecting hostname in DNS" will result in increased connection
times. When enabled, Domino will attempt to find a PTR record in DNS for each
host that attempts to establish a connection with Domino. If no PTR record is
located in DNS, the connection will be denied. Be aware that PTR records are
not
a required DNS record. Domino potentially could reject connections from
valid hosts with this feature enabled.
Using the "Allow connections only from..." or "Deny connections from the
following SMTP internet hostnames/IP addresses" fields can be used to control
the hosts that are allowed or denied a connection to this Domino server via
SMTP. Hostnames and IP addresses are allowed in these fields. If you choose to
use IP addresses, be sure to enter them in brackets, for example:
[192.168.10.17].
Entering hostnames or IP addresses in the "Allow connections only from the
following SMTP internet hostnames/IP addresses:" field will allow
hosts to connect to the Domino server. All other hosts are denied.
For example, if abc.com was entered in the Allow field, only hosts belonging to
the abc.com domain would be allowed to connect to the Domino server.
If you enter a hostname/IP address in both the Allow and Deny fields, the Deny
entries will take precedence over the Allow entries.
4.2.5 Inbound sender controls
Inbound sender controls were introduced in Domino Release 5 and have
remained unchanged in Domino 6. The inbound sender controls allow you to
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Lotus Domino 6 spam Survival Guide for IBM eServer
only
these
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