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1496168 - Relay problem while sending mails through SAPconnect using SMTP plug-in


Sending mails from SAP system to an external mail address through SMTP node, following error status can be seen in transaction SOST for some send requests:

  • XS802
  • XS812
  • XS806
  • XS829
  • XS855

The error message can be checked in more detail in transaction SOST (list of transmission requests) as follows:

  1. Find the appropriate send request with mentioned error status (XS802, XS812, XS806, XS829 or XS855)
  2. In column "MSG" double click on the error number 802, 812, 806, 829 or 855
  3. Click on button "Long Text" in the popup
  4. Under "Diagnosis" you will find more information about the reason, like relay/rejection problem

The following information might be displayed under "Diagnosis" (commonly used status information, which depends on the mail server):

  • Relaying denied
  • Unable to relay
  • Relay access denied
  • Relay rejected for policy reasons
  • Rejected for policy reasons
  • Sorry, that domain isn't in my list of allowed
  • Invalid domain name



  • All SAP versions as of basis release 6.10
  • SMTP plug-in
  • SAPconnect


SAP NetWeaver Application Server all versions ; SAP NetWeaver all versions ; SAP R/3 Enterprise all versions


CL_SMTP_RESPONSE ESMTP error code is not known, XS 802, XS 829, 550, 553, 554, 5.7.1, SCOT, No delivery, as recipient unknown, rejecting, security reason, domain, 5.2.2 mailbox full, 501, 5.4.4, Invalid domain name, 5.7.54, Unable to reply recipient in non-accepted domain, 5.7.64 Relay Access Denied, ATTR36, , KBA , recipient address unknown , office365 , xs813 , BC-SRV-COM , Communication Services: Mail, Fax, SMS, Telephony , Problem

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