Just that you post more information more accurately. Outlook does not even
have an address book. It only has Contact Folders. The address book is
simply a view of the electronic addresses in your Contacts Folder.
Accordingly, there is no way it can contain more addresses than your Contact
Folder contains.
State your Outlook version. Reconcile the discrepancies in your post.

--
Russ Valentine
[MVP-Outlook]
"Bruce in BR" Bruce in wrote in message
...
I have an outlook address book with 199 entries. If I am within the
"contacts" tab, I can use them all effectively.

However, if I am within the message/mail tab and I want to send a message,
clicking on the "To" button brings up a list with only 29 of the names
from
the database. I have no idea how to get all of the names from the entire
list to appear as choices.

Do you have any suggestions?