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3020328 - Emails fail with XS812, long text shows "554 transaction failed: illegal address"


  • Emails are failing in SOST with error message XS812 in SOST, long text of the error shows message: "554 transaction failed: illegal address"
  • This may only be happening to one or just a few users in the system. All of the affected users emails will fail with this error in SOST, while other users can send emails to the same recipients without an issue.
  • Screenshot of the XS812 error and long text of the error from SOST:


    XS812 1.PNG

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



  • SAP NetWeaver
  • Basis release Independent


XS812, 554 transaction failed: illegal address, mail, email, SOST, illegal address, , KBA , BC-SRV-COM-INT , Obsolete. Please use BC-SRV-COM , BC-SRV-COM , Communication Services: Mail, Fax, SMS, Telephony , Problem

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