Error 0x80040109

Value: -2147221239 | 0x80040109 | 2147746057

What does it mean ?

_MAPI_E_OBJECT_CHANGED  
The MAPI object was changed.
Value: 265 | 0x0109 | 0b0000000100001001

Where does it come from ?

FACILITY_ITF  
COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

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