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3064215 - Error message XS816 'SMTP communication error' for SMTP messages in SOST


  • Outbound messages are sent from SAP system using SMTP protocol.
  • Messages failed with error message XS816 - Message cannot be transferred to node SMTP due to connection error(final).
  • The long text shows: Information from external system (if available) SMTP communication error.

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  • Following error can be observed in developer trace:

    ERROR => HTTP> ab_HttpOpen: ab_IcfRSecReadItemClientDepend failed!



  • SAP Netweaver
  • Release independent


SAP NetWeaver all versions


Message no. XS816, SMTP communication error, ab_IcfRSecReadItemClientDepend failed , KBA , BC-SRV-COM , Communication Services: Mail, Fax, SMS, Telephony , Problem

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