Technology solutions for Systems Engineers and Admins. Linux, Windows, scripts, and code.
Friday, February 12, 2010
Outlook 2007: the messaging interface has returned an unknown error
If you receive "the messaging interface has returned an unknown error" in Outlook, this usually indicates a corrupt OST file. The easiest thing to do is delete the user's OST file and let Outlook rebuild it.
C:\Documents and Settings\USERNAME\Local Settings\Application Data\Microsoft\Outlook\outlook.ost