553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)

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553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1) Posted by , Last modified by Kai Strecker on 04 July 2019 11:51
Falls Sie nach dem Versenden einer E-Mail den Fehler erhalten: "553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)", aktivieren Sie die SMTP-Authentifizierung für den Postausgangsserver in Ihrem E-Mail-Programm. Verwenden Sie bitte dieselben Daten wie beim Posteingangsserver.
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