Solution : https://service.sap.com/sap/support/notes/709597 (SAP Service marketplace login required)
Key words :
sap internet mail gateway, prerequisites incorrect implementation, symptom mails, underscores '_', terms space, mlsomail reason, including version 4, underscore, information, downloading
Related Notes :
| 735810 | |
| 101573 | Internet Mail Gateway: Versions |