Some of the most dangerous cybersecurity threats originate with email, costing businesses millions of dollars annually. How can you increase your email security and prevent email fraud? In this series, we will look at how to use DNS records to prevent email forgery. The first and simplest method is SPF – Sender Policy Framework. Below, […]
Building a safer email ecosystem with DMARC In our previous post, we described two techniques for authenticating an email sender: Sender Policy Framework (SPF), IETF RFC 7208, which verifies if the sending MTA is indeed authorized to send mail on behalf of a domain; and DomainKeys Identified Mail (DKIM), IETF RFC 6376, where a domain shows “ownership” of a mail […]
So, you’re minding your own business, going about your daily tasks, checking your email, and suddenly your INBOX is flooded with a series of non-delivery reports (aka NDRs or bounce messages). But wait just a minute, you didn’t send these. How did this happen? Did someone steal your email address? How is that possible? What […]
