Messaging interface has returned an unknown error
Posted on 2007-07-31
I am running Outlook 2003 on a machine with Windows XP SP2. It has been running with no problem until yesterday when an error, 'messaging interface has returned an unknown error. Try restarting Outlook.', pops up when I try to create, reply to or forward a message. I have uninstalled and reinstalled the Office suite, all updates have been run for both Office and Windows, spyware and virus scans have been run, the hard drive has been defragmented. No new software has been installed recently.
Any help would be appreciated.