SMTP Smuggling: New Flaw Lets Attackers Bypass Security and Spoof Emails

A new exploitation technique called Simple Mail Transfer Protocol (SMTP) smuggling can be weaponized by threat actors to send spoofed emails with fake sender addresses while bypassing security measures.

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Author Bio – Tony Fortunato, Network Performance Specialist

Tony Fortunato is a network performance expert who has been designing, implementing, and troubleshooting networks since 1989.

His company, The Technology Firm, provides clients of all sizes with services ranging from project management, network design, consulting, troubleshooting, custom-designed training courses, as well as assisting with equipment installation.

Tony has taught and presented at numerous colleges and universities, public forums, and hundreds of private classes.