Does anyone have any idea on how to resolve this problem? Another user in my company reported the same issue today.
- start an Office document (Excel, Word, etc.)
- go to File - Send To - Mail Recipient as Attachment
- try to send the e-mail with attachment, error occurs
- delete attachment, re-add it through Outlook, message sends just fine
Again, this only happens if the user initiates the attachment/e-mail from an Office application other than Outlook itself. Running a detect-and-repair, installing SP2, latest updates, etc. does not seem to remedy the issue.