Using transport rules as a security tool (Part 1)

At a conference last May, I had an opportunity to facilitate a session focused around email security covering topics such as SPF/DKIM/DMARC/MTA-STS, spam/phishing filtering, message routing, archiving/holds, and more. During that session, I shared about the methodology I use to track current trends of spam and phishing attacks rather than relying on the native spam filtering in our email platforms…