Event Type: Error
Event Source: EXOLEDB
Event Category: General
Event ID: 111
Date: 4/10/2007
Time: 5:44:40 PM
User: N/A
Computer: SCHGVAEX002
Description:
Microsoft Exchange OLEDB was unable to do Schema propagation on MDB startup HRESULT = 0x80040e19.

If you have this event on Exchange server - go to system manager - Administrative groups - ..- folders

Right click and select view system folders

see if you have two schema-root folders - this may be cause of this error. Microsoft suggest to delete one (make sure you have backup!).