Problem gefunden :
Mittleres Bild.
Dein SMTP Server benötigt einen Login ( Authentifizierung )
Also haken da setzten wo keiner ist und Logindaten zum eMail Konto eintragen
Edit :
Sory kenn Outlook net so wirklich ... also wenn du eMails empfangen kannst , aber keine versenden kannst dann isses merkwürdig
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