The fastest and easiest way to improve email delivery and prevent sender address forgery is to use a DNS TXT record to publish who is allowed to send emails and from which server the emails are allowed to originate. This…
Read more → Sender ID uses ‘spf2′ to identify the DNS TXT record, leading one to believe that Sender ID is version 2 of the SPF framework. It is not. This misnomer denotes a broken framework championed by Microsoft. Precautions need to be…
Read more → Domain-based Message Authentication, Reporting and Conformance (DMARC) establishes operating rules on how to interpret the technical results of DKIM and SPF validation. DMARC was initiated in 2011 to combat phishing attacks. An email sender uses a DNS TXT field to…
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