MAIL
To save bandwidth and improve server performance, you can disable type-ahead addressing. If you disable type-ahead addressing on a mail server, users can still use type-ahead addressing to find addresses in their Contacts or mobile Directory Catalog.
1. Make sure you already have a Configuration Settings document for the server(s) to be configured.
2. From the Domino Administrator, click the Configuration tab and expand the Messaging section.
3. Click Configurations.
4. Select the Configuration Settings document for the mail server or servers to administer, and click Edit Configuration.
5. On the Basics tab, complete this field, and then click Save & Close: