In transaction SOST, your are getting error, “Internal error: SO_OBJECT_MIME_GET Exception:2” while checking the email delivery status. In order to dig further details, you need to look onto the trace file. You can get the trace from transaction code SOST. Highlight the error email, select Send Request > Display Trace from the top menu. Then, select Choose (or F2) to view the trace. In this exercise, below error was found.
BCS->MIME_MESSAGE_GENERATE Error when generating MIME flow BCS->MIME_MESSAGE_GENERATE Error while automatically determining the default internet domain SO_OBJECT_MIME_GET No MIME Document Received. Error Code: MIME_BCS SX_GENERATE_NDR Internal error: SO_OBJECT_MIME_GET Exception: 2
1. From the top menu of transaction code SCOT, select Settings > Default Domain. Define the default domain and save. You can resend the email again
SAP Note 487754