Solution : https://service.sap.com/sap/support/notes/723589 (SAP Service marketplace login required)
Key words :
terms img mlunxsnd outbound mail reason, sap internet mail gateway, process e-mails correctly, mail client, mail system, processed correctly, virus scanner, spam filter, content-id, message_id@domain_part>
Related Notes :
| 101573 | Internet Mail Gateway: Versions |