October 2017
Intermediate to advanced
320 pages
10h 44m
German
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8.6Beispiel 3: SMTP für E-Mail im Internet
8.6.1Modell der Simple Mail für das Internet
Eine E-Mail ist eine Datei, die über das Transportsystem des Internets von einem Absender zu einem Empfänger gesendet wird. Zur Identifikation der Mailempfänger brauchen sich die Teilnehmer zum Glück nicht die unhandlichen Internetadressen mit ihren vier dreistelligen Zahlen zu merken. Dafür gibt es die bekannten und einfach zu merkenden E-Mail-Adressen Username@Domainname. Die Mailprogramme der Clients und der vermittelnden Nachrichtenserver interpretieren die Adressen und setzen sie zur richtigen Weiterleitung im Internet in die zugehörigen Internetadressen um.
Zur vollständigen Spezifikation des E-Mail-Protokolls müssen zwei Dinge beschrieben werden: erstens ...
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