3315584 - HANA Alert Emails Are Not Sent To Configured Email Addresses.

You have followed SAP note 2326040 - E-mail Notification Alerts for HANA - How To, as well as SAP document Set Up Email Notification Defaults

However, the email recipients failed to receive email notifications when there is a new HANA alert.

Indexserver trace shows below error:

SMTP protocol error, expected 250, got 451: 4.3.0 Multiple destination domains per transaction is unsupported

 "Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

SAP HANA, platform edition 2.0

destination domain, email, alert, SMTP, expected 250, 451: 4.3.0 , KBA , HAN-DB-MON , SAP HANA Monitoring , Problem