To accomplish the above, copy or replicate the remote Name & Address Books (NABs) to your local Domino SMTP server. Then do the following:
I. Set up Directory Assistance.

1. Create a database called DA.NSF, using the Directory Assistance template (DA50.NTF).
2. Click the "Add Directory Assistance" button.
3. In the Basics tab's "Domain name" field, enter a unique domain name for the NAB in which you want to create the DA entry. (Use a domain name that is not already being used as an existing domain.)
4. In the "Company name" field, enter the name of the company name (this is for information only).
5. In the "Search order" field, select a priority.
6. Make no changes to the fields in the Rules tab.
7. In the Replicas tab, either (A) create a link to the address book (suggested), or (B) enter the name of the Domino server on which the NAB resides (your local server, in this case) and the name of the database. Set the "Enabled" field to "Yes."
8. Click the "Save and Close" button.
9. Repeat the above for each NAB, excluding the NAB for your local domain (Domino knows already to make use of it).
10. Open the Server document for the local Domino SMTP server.
11. In the Basics tab's "Directory Assistance database name" field, enter the name of the newly-created database (DA.NSF).
12. Restart the Domino server (so that changes can take effect).