37C3 - SMTP Smuggling – Spoofing E-Mails Worldwide
Why the open web links it
Introduces a novel technique for email spoofing exploiting SMTP protocol weaknesses.
Linked by 4 independent sites, 3 of them widely read in the 2026-10 crawl of the open web, including tenable.com, sentinelone.com, aikido.dev, smtpsmuggling.com.