A script that helps you understand why your E-Mail ended up in Spam
Whether you are trying to understand why a specific e-mail ended up in SPAM/Junk for your daily Administrative duties or for your Red-Team Phishing simulation purposes, this script is there for you to help!
Idea arose while delivering a commercial Phishing Simulation exercises against MS Office365 E5 estate, equipped with MS Defender for Office365. As one can imagine, pretty tough security stack to work with from a phishing-simulation perspective.
After digging manually through all these Office365 SMTP headers and trying to cherry-pick these SCL values, time come to write up a proper parser for SMTP headers.
Time went by, I was adding support for more and more SMTP headers – and here we have it. Tool that now comprehends tens of different headers.
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This tool