PST Files

I have copied the PST file from the local machine and moved it over to the server. I did this so the server will backup PST files. I told Outlook to use the PST file on the server as the primary mail delievery.

All emails are showing up just fine, everything seemed to trasfer just fine, even the contacts are there. However when you go to write and email and select the address book, next to “To:” no one is showing up in the contact list. But if you go to Contacts in Outlook they are all there.

Why is this happening?