If the email message is received by the recipient but still stucked in Out box, please apply Office 2007 SP2 and the registry key below: HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Cached Mode Name=“SendOne” Value=”0” Other wise, please check if there is an network related issue. Best Regards Fiona Liao E: v-fiolia@microsoft.com

If the email message is received by the recipient but still stucked in Out box, please apply Office 2007 SP2 and the registry key below: HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Cached Mode Name=“SendOne” Value=”0” Other wise, please check if there is an network related issue. Best Regards Fiona Liao E: v-fiolia@microsoft.com

We are using exchange 2007, and have each role running on a separate server such as the mailbox server runs on a separate server, and the CAS, and the transport server running on a separate server. We have many users today who are seeing a delay when sending out email through outllook either through outlook 2003 0r 2007. When they send an email internally or externally it gets stuck in outbox, and waits for a while before sending, and for some users it does not send the email just stays stuck in outbox. Users who have iphones or blackberry users configured with exchange have more emails in their inbox, then their inbox in outlook. Its only started happenning this morning, any reasons why.