Course Specifications
The SMTP Exploitation & Advanced Email Spoofing course is out now. From raw protocol analysis to bypassing modern defenses and landing in the inbox, this course covers the full attack chain against email infrastructure in a realistic lab environment.
Key topics covered in this course:
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SMTP Fundamentals: How mail transfer agents process envelopes, headers, and trust boundaries at the TCP level.
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Email Authentication Flaws: Deep dive into SPF, DKIM, and DMARC alignment, including common edge cases and misconfigurations.
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Manual Spoofing: Constructing forged headers and custom mail payloads using command-line tools and raw sockets.
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Filter Bypasses: Exploiting subdomain delegation, weak PTR setups, and policy gaps to bypass spam filters and security gateways.
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Initial Access Execution: Chaining spoofed mail delivery with payloads to simulate real-world phishing vectors.
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Defense & Verification: Setting up proper DMARC policies, strict SPF rules, and monitoring to detect spoofing attempts.
Instead of just running pre-made scripts, this course focuses on understanding the underlying RFCs so you can identify and abuse authentication flaws in any environment.