Tag: Shadow and Reflection

Email authentication is the process of verifying that an email message came from the sender it claims to be from. This is important for preventing spam, phishing, and other email-based attacks. There are two main email authentication standards: SPF and DKIM. SPF (Sender Policy Framework) allows you to specify which mail servers are authorized to…

The email header is one of the most important parts of an email. It’s the first thing recipients see, and it can make or break the chances of your email getting opene. In this blog post, we’ll walk you through the essential elements of a well-written email header, and give you some tips on how…