Error 0x8004531C

Value: -2147200228 | 0x8004531C | 2147767068

What does it mean ?

FSRM_E_EMAIL_NOT_SENT  
The File Server Resource Manager service could not send email due to an error. Check the application event log for more information.
Value: 21276 | 0x531C | 0b0101001100011100

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

Other Errors for FACILITY_ITF