SAP Knowledge Base Article - Preview

2774366 - Error message XS816 'Unknown hostname' for SMTP messages in SOST

Symptom

  • A message is trying to be sent using the STMP protocol from the SAP system.
  • These messages are failing with error message XS816 - Message cannot be transferred to node SMTP due to connection error (final).

    xs816-1.PNG

  • The long text of the error message shows: Information from external system (if available) Unknown hostname.

    xs816-2-1.png

  • And in dev_icm trace level 3 shows:

    xs816-3.PNG

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


Read more...

Environment

All Release

Product

SAP ERP 6.0 ; SAP NetWeaver 2004 ; SAP NetWeaver 7.0 ; SAP NetWeaver 7.1 ; SAP NetWeaver 7.2 ; SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5 ; SAP enhancement package 1 for SAP NetWeaver 7.0 ; SAP enhancement package 1 for SAP NetWeaver 7.3 ; SAP enhancement package 2 for SAP NetWeaver 7.0 ; SAP enhancement package 3 for SAP NetWeaver 7.0

Keywords

XS816, Message cannot be transferred to node SMTP due to connection error (final), Unknown hostname , KBA , xs816 , unknown hostname , message cannot be transferred to node sm , BC-SRV-COM , Communication Services: Mail, Fax, SMS, Telephony , 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.