In the main window of the application web interface, open the management console tree and select the Settings section and LDAP subsection.
In the lower part of the workspace, select the LDAP server the filters of the connection to which you want to configure.
In the LDAP Filter Settings settings group of the selected server, click any link to open the LDAP Filter Settings window.
In the Set up LDAP filters group of settings, in the User authentication field specify the user authentication filter (for example, to let the user access the user's messages in Backup).
To set the standard values of the user authentication filter, click the Set default values link under the User authentication field.
In the Set up LDAP filters settings group, in the User and group search field, specify the search filter for users or a group of users.
To set the standard values of the user and group search filter, click the Set default values link under the User and group search field.
In the Set up LDAP filters settings group, in the Search for the DN of users and groups using email address field, specify the filter for searching for the DN of users and groups to which they belong based on their email address.
To set standard values for the filter for searching for the DN of users and groups to which they belong based on their email address, click the Set default values link under the Search for the DN of users and groups using email address.
In the Set up LDAP filters group of settings, in the Search for groups by users' DN field configure the filter for searching for groups to which the user belongs based on the user's DN. This filter is used when the user group could not be determined using the filter specified in the Search for the DN of users and groups using email address field.
To set the standard values of the filter for searching for groups to which the user belongs based on the user's DN, click the Set default values link under the Search for groups by users' DN field.
Select the Use recursive search check box to enable a search for LDAP accounts in subgroups.