How Typewriters Broke Email Security

Hackers discovered a way to bypass email security by taking advantage of a behaviour handed down through the years all the way from mechanical typewriters. Learn how SMTP smuggling works, and how to protect yourself.

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📽️ How to Prevent Email Spoofing with DKIM, DMARC & SPF
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🌐 Postfix Article about SMTP Smuggling
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https://nvd.nist.gov/vuln/detail/CVE-...

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https://nvd.nist.gov/vuln/detail/CVE-...

🌐 EXIM Vulnerability: CVE-2023-51766
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Video timestamps:
0:00 - How Typewriters Work
1:13 - Computers and Teleprinters
2:41 - Line Endings in Different Operating Systems
5:38 - How SMTP Works
7:19 - Email Server Implementations
9:40 - How SMTP Smuggling Works

#Email #SMTP #Cybersecurity