How To Do Email Analysis? Complete Guide
Security Boulevard, Friday, February 27th, 2026
Despite advances in secure email gateways, cyberactors continue to bypass filters by abusing trust, misusing legitimate infrastructure, and creating messages that appear to be routine to recipients. This makes it all the more important for security teams to conduct regular email analysis.
It's important to understand that the exercise of examining email messages doesn't depend on whether a message 'appears' or 'feels' suspicious. It's rather a structured investigation that checks email authentication results, sender identity, routing paths, message content, and attachments to categorize an email as 'legitimate' or 'malicious.' When done correctly, email analysis helps organizations detect threats early, limit internal spread, and respond with confidence instead of guesswork.
This guide breaks down email analysis step by step, explaining how to examine headers, interpret authentication signals, analyse email content, and take appropriate action using evidence-driven methods rather than assumptions.