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Address resolution methods are:
For Dynamic then local, the Router first queries the DNS and then checks a file on your local drive. This file, known as a hosts file, maps destination host names to IP addresses. The Dynamic then local option can be useful if you need to connect to internal hosts that are not listed in the DNS.
If you configure TCP/IP to use local hosts lookup, select "Local lookup only." If you use this option, the IP address and fully qualified host name for each destination must exist in the hosts file. This option requires more administrative attention than the Dynamic mapping only option because you need to maintain the file.
If the DNS does not list a destination host name, the Router designates the message as non-deliverable. If the DNS is unavailable, the Router retries delivery up to the configured number of times as indicated in the Initial transfer retry field on the Configuration Settings document.
To set how host names are looked up
1. Make sure you already have a Configuration Settings document for the server(s) to be configured.
2. From the IBM® Lotus® Domino® Administrator, click the Configuration tab and then expand the Messaging section.
3. Choose Configurations.
4. Select the Configuration Settings document to be edited and then click Edit Configuration.
5. Click the Router/SMTP tab.
6. On the Basics tab, complete this field, and then save the document:
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