KnowBe4 - SMTP Smuggling Technique Bypasses Email Authentications Establishing Legitimacy

SMTP Smuggling Technique Bypasses Email Authentications Establishing Legitimacy

A newly-discovered technique misusing SMTP commands allows cybercriminals to pass SPF, DKIM and DMARC checks, empowering impersonated emails to reach their intended victim.



from KnowBe4 Security Awareness Training Blog https://blog.knowbe4.com/smtp-smuggling-email-security-impersonation

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