If you are using the LDAP server or the Active Directory of Windows Server, you can search for a recipient on the server.
The [Basic] search displays recipients which meet any of search conditions. Enter characters you want to search for in each search item, and click [Search Now].
The [Advanced] search displays the recipient which matches all of search conditions. Select the [Search Item] and [Condition]. Then, enter characters to search, then click [Add Condition]. Specify multiple search conditions if necessary, then click [Search Now].
The search result is displayed.