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3530242 - Error XS138 triggered by use of umlaut characters in email addresses

Symptom

Inability to maintain email addresses containing umlauts (ä, ö, ü). This leads to the error message "XS138 - e-mail address XXX is invalid" in the long text message (SAP Note 2757752) on SOST.


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Environment

SAP Netweaver release independent

Product

SAP NetWeaver all versions ; SAP S/4HANA all versions

Keywords

SAP S/4HANA, Email Address, Umlauts, XS138, SMTP, RFC5322, SX_INTERNET_ADDRESS_TO_NORMAL, Email address validation,  Address Specification, SMTP, SOST, SCOT, SAPConnect , KBA , BC-SRV-COM , Communication Services: Mail, Fax, SMS, Telephony , Problem

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