Set addressbook in DA as default addressbook

Hello,

have a problem that sounds easy enough, but is causing lots of grey hairs on my head.

We have 3 additional addressbooks listet in the Directory Assistance. Once the user opens a new mail and uses addressbook to find a user he/she allways gets either the personal addressbook or the domain addressbook (the servers names.nsf).

Is there a way to make any of the addressbooks in the DA the default addressbook when using addressbooks in a new mail?

I have searched the forum but found nothing on this.

Any help appriciated.

Johan