howto keep hierarchy in distribution lists when shared with other

[sebastien roupin]

Dear,
i've a quick problem:

i have this situation:


Contact_list1
Contact_list2

Contact_list3 (contains Contact_list1 + Contact_list2)

I granted my colleague the reviewer access to my contact lists. He can open
my contact folder BUT when he want to send a mail to Contact_list3 via his
onw mailbox, he right click on the shared contact list, then new message to
contact (in the To field : Contact_list3)

BUT when he send the message, he gets an administrator error because
Contact_list2 cannot be reached.

So is there any common way to share this sort of contact lists keeping the
hierarchy between the contact lists.

Many thanks in advance,

Sebastien