Error 0x80040D15

Value: -2147218155 | 0x80040D15 | 2147749141

What does it mean ?

GTHR_E_NO_IDENTITY  
The user agent or e-mail address was not specified. Specify the e-mail address to use in the protocol headers.
Value: 3349 | 0x0D15 | 0b0000110100010101

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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