The travel industry and large banks were the US industries most abused by spam and malicious email in the second quarter of 2014, according to Agari’s Email TrustIndex.
The Index (registration required) is a combined abstraction of two things. First, and most importantly, the extent to which each of the 147 well-known US brands and their industry sectors are targeted by spam and malicious email passing itself off as genuine.
A second dimension is how well these project email security using authentication standards such as SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail) and DMARC (Domain-based Message Authetication, Reporting and Conformance).
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