Do you have problems sending email? Did you recently install updates for Outlook, windows, or a firewall? If so, you need to check that your firewall software is not preventing Outlook from connecting to the Internet. If you use Antivirus software to scan outgoing email, verify it’s not blocked as well, or better yet, disable that feature as you really don’t need it.
Related posts:
« « Tip 227: Identifying Canceled Meeting RequestsTip 229: Copy your Outlook Bar Customizations » »

outlook has been trying to sent 3 messages that don’t exist. how can i permanently cancel the messages where ever they are?
It’s probably stuck read receipts. See http://www.outlook-tips.net/2011/1215/delete-read-receipts-using-mfcmapi/ for the steps to delete them.
Thanks for you site and introducing me to MPCMAPI. It fixed a nagging problem with stuck read receipts. Are there GOOD utilities to remove duplicate e-mails for Outlook 2010.
Thanks JPB
You’re Welcome. There is a long list of duplicate remover tools here – Duplicate remover tools The ones at the top are good and all work with outlook 2010, but most of the ones on the page should work good with 2010. The last two are free but haven’t been updated in years. They should work in outlook 2010 32bit.
Thanks for the solution, Diane, problem sending email makes me headache, I got the clue.
Thanks,
Th