outlook 2007 search function

I have a exchange 2007 server, today started search function problem who uses qoutlook 2007 .
When user uses outlook search function then searching in thousend of mail can not find mail actually mail is there.

any idea? where can i search problem or where do i need to look?
Thanks
apollo-13Asked:
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Rajkumar-MCITPCommented:
Is that outlook profile configured in online mode?

If users are configured to use Cached Exchange Mode, Office Outlook 2007 indexes the search locally.

Make sure indexing is full configured for all the mailbox in Index option.

Outlook 2007 -> Tools - Instant Search - check the index status and search options to include the mailbox, pst etc

inform if any issue
apollo-13Author Commented:
Is that outlook profile configured in online mode?--if you meant ONLINE WITH MICROSOFT EXCHNAGE write above then  YES

If users are configured to use Cached Exchange Mode, Office Outlook 2007 indexes the search locally. ---YES

Outlook 2007 -> Tools - Instant Search - check the index status and search options to include the mailbox, pst etc --index status is =0
                                --in options NO pst shows
Rajkumar-MCITPCommented:
Online in the sense, cached mode was unchecked. Ok, i got it that you are using cached mode.

Search Option - If you are searching for mailbox, is that selected\checked under indexing?

If it checked, you can fix this issue, by resetting\rebuilding the indexing from control panel.

Inform if any issue
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apollo-13Author Commented:
cached mode= checked

Search Option - If you are searching for mailbox, is that selected\checked under indexing?= yes
Rajkumar-MCITPCommented:
Ok.  if it is a single user issue.

Rebuild the index.

Control Panel -> Indexing option ->Advanced - Rebuild.

Wait for indexing to complete and search for a email and inform the status.

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apollo-13Author Commented:
user in terminal server ,
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