Configuring S/MIME LDAP Settings

If you enabled the S/MIME feature and users use external LDAP servers to retrieve private keys, you must configure the LDAP settings for each external LDAP server that is accessed.

1. Go to the Configure>Global Settings>S/MIME page.

2. In the Configuration Name field, enter a name to identify this LDAP server.

3. In the LDAP URL field, enter the LDAP server URL.

3. To use DN to bind to the external server, in the S/MIME Ldap Bind DN field, enter the bind DN. If  anonymous bind is used, leave the Bind DN and Bind password empty.

4. In the S/MIME Ldap Bind Password field, enter the password to the Bind DN.

5. To search within a specific branch of the LDAP server, in the S/MIME Ldap Search Base field enter the search base. For example dc=server,dc=com).

or

Check Automatically discover search base to automatically discover search base DNs if one is not provided. For this to work, the S/MIME Ldap Search Base field must be empty.

6. In the S/MIME Ldap filter field, enter the filter template for the search. The filter template can contain the following conversion variables for expansion:

   • %n - search key with  @ (or without, if no @ was specified)

   • %u - with @ removed (For example, mail=%n)

7. In the S/MIME Ldap Attribute field, enter the attributes in the external LDAP server that contain the users S/MIME certificates. Multiple attributes can be separated by a comma (,). (For example, "user SM I ME Certificate , userCertificate"

8. (Optional) Click Add Configuration to set up another external LDAP server.

9. Click Save.

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