Message stays in the OutBox and gives a blank error message. Message has actually been sent. I can delete the message, but manually can not move to the Sent Box. Running Windows XP Home with SP3 + Have MS Office XP installed. Have MS Security Essentials as well as AVG 8.5. Also use Super Anti Spyware and Malware Bytes. Have removed and re-installed Outlook Express, compacted all folders, re-registered Outlook Express and also re-registered Dynamic Link Libraries. None of which has helped.

Refer the links below which describes the same issue.http://support.microsoft.com/kb/262052http://social.answers.microsoft.com/Forums/en-US/vistaprograms/thread/c29ecd38-1a55-4cc8-b41b-26b6476e4776 For any further issues related to Outlook express, post your question in the below mentioned forum.http://social.answers.microsoft.com/Forums/en-US/xpnetwork/threads