A closer look at SPF

    Date14 Sep 2004
    4169
    Posted ByAnthony Pell
    Several mechanisms have emerged which attempt to thwart the proliferation of an ever increasing volume of spam. The SPF ("Sender Policy Framework") is a framework designed prior to the SenderID initiative, which is being considered as a standard for email authentication by major players like Sendmail . . . Several mechanisms have emerged which attempt to thwart the proliferation of an ever increasing volume of spam. The SPF ("Sender Policy Framework") is a framework designed prior to the SenderID initiative, which is being considered as a standard for email authentication by major players like Sendmail, Microsoft and the IETF, among others. But the Apache Software Foundation and the Debian Project have both chosen not to implement SenderID because of its restrictive IP licensing. In this article we will take a close look at SPF: how it works and how it is deployed. The exchange for processing an email takes place between two SMTP servers, where the originating party acts as a broker for sending a message which is later processed for delivery by the receiving server. However, this process assumes the originating party is worthy of trust.
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