<div>
They are failing to connect to the mailboxes on server for some reason and falling back to the local copy <br />
<br />
Any changes made to the exchange database ?
</div>


<div>
Kostasp is correct in that you can recreate the profiles <br />
Watch out for having to recreate any address list nk2 files (depending on which version of outlook you are using )<br />
I would be looking to establish why the clients are losing connectivity
</div>


<div>
<div class="content wysiwyg-content">
hi<br />
<br />
we have exchange 2003. all end users are using outlook client with Imap. from past few days all Users are getting the alert each time when they try to open outlook is “use temporary mailbox”
</div>
</div>


hi

we have exchange 2003. all end users are using outlook client with Imap. from past few days all Users are getting the alert each time when they try to open outlook is “use temporary mailbox”

They are failing to connect to the mailboxes on server for some reason and falling back to the local copy 

Any changes made to the exchange database ?

Kostasp is correct in that you can recreate the profiles 
Watch out for having to recreate any address list nk2 files (depending on which version of outlook you are using )
I would be looking to establish why the clients are losing connectivity

microsoft exchange server error in outlook client

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.