SAP Knowledge Base Article - Preview

3085120 - "550 5.2.1 Mailbox cannot be accessed" error when connecting CPI to Outlook Mail Server


When trying to connect CPI to Outlook Mail Server using Mail Receiver Adapter the iFlow will fail with:

javax.mail.AuthenticationFailedException - 550 5.2.1 Mailbox cannot be accessed [xxxxxxxx.xxxxxxxx.xxxx.OUTLOOK.COM]

The same error will appear if the connection is tested in Test Connectivity -> SMTP:



SAP Integration Suite
SAP Cloud Integration


Cloud Integration 4.0 ; SAP Cloud Platform Integration for process services 3.0


SAP Cloud Integration, SAP Integration Suite, SAP Cloud Platform Integration, Cloud Platform Integration, SAP CPI, CPI, SCPI, HANA Cloud Integration, HCI, SAP HCI, tenant, iFlow, Integration Flow, MS Office 
, KBA , LOD-HCI-PI-CON-SOAP , SOAP Adapter , Problem

About this page

This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP for Me (Login required).

Search for additional results

Visit SAP Support Portal's SAP Notes and KBA Search.