SAP Message XS853 - No delivery to &1, authentication required

Diagnosis
The message was processed successfully in the SAP system. The mailserver that is supposed to receive the message for further processingrequires authentication. The SAP system does not support this procedure.As a result, the message was not delivered to recipient &V1&.

Information from External System
IF &V4& <> ''
V4v3
ELSE

ENDIF

Procedure
The administration settings must be changed. The specified mail servermust not request authentication.