This has been happening to some mailboxes for a long time, the only way I know to handle this is to have them log into OWA or online mode and empty the outbox. In all of our experiences the message is in the sent items as well as the outbox. You mentioned that this doesn't happen for you?
You can see which mailboxes have items in the outbox by running this powershell
command:
Get-mailbox -resultsize unlimited | % {Get-MailboxFolderStatistics $_
-FolderScope outbox} | Sort-Object -Descending ItemsInFolder | ft -AutoSize
Identity, servername, ItemsInFolder
Microsoft has stated that one of the office patches or updates was supposed to
correct this issue but it hasn't worked for us.
Thanks,
Adam Smith
203-436-1836
(Under construction)
Click to connect: [cid:image001.png@01CBB8B5.31BFB5F0]
<sip:adam.d.sm...@yale.edu> [cid:image002.png@01CBB8B5.31BFB5F0]
<mailto:adam.d.sm...@yale.edu> [cid:image003.png@01CBB8B5.31BFB5F0]
<tel:+12034361836>
From: Chris Blair [mailto:chris_bl...@identisys.com]
Sent: Thursday, January 20, 2011 1:43 PM
To: MS-Exchange Admin Issues
Subject: Emails in Outbox
Running Exchange 2007, Sp3 HF2. Have a few users getting emails stuck in the
Outbox. I checked the logs, and the emails are being sent, but they are not
moved into the Sent folder.
The Outlook profiles are all non-cached, and running 2007, with latest SP and
updates.
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