Approximately 20% of the messages that I write refuse to be sent by Outlook. Upon review, I have found that the message is in the Outbox under the heading "date:none". Subsequent messages will go under the heading "date:today" and be sent, while the older message under "date:none" refuses to go out. I must start a new message and cut and paste the text. Then I have to delete the message under "date:none".

I have even seen a message go from date:today to date:none and then refuse to be sent.

I have changed no settings on Outlook. It was stable until recently. Any ideas as to how to fix this? Thanks./ cel