DNS-based email sender authentication mechanisms: A critical review
2009; Elsevier BV; Volume: 28; Issue: 8 Linguagem: Inglês
10.1016/j.cose.2009.05.002
ISSN1872-6208
Autores Tópico(s)User Authentication and Security Systems
ResumoWe describe and compare three predominant email sender authentication mechanisms based on DNS: SPF, DKIM and Sender-ID Framework (SIDF). These mechanisms are designed mainly to assist in filtering of undesirable email messages, in particular spam and phishing emails. We clarify the limitations of these mechanisms, identify risks, and make recommendations. In particular, we argue that, properly used, SPF and DKIM can both help improve the efficiency and accuracy of email filtering.
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