Every email has more than one “From” address — and they often don’t match.
That mismatch is why messages get flagged, rejected, or quietly distrusted.

I break down the six different From addresses inside every email, what each one is for, and why alignment matters.

👉 https://paulobrien.com/the-6-different-from-addresses-inside-every-email-and-why-they-dont-match/

#Email #EmailSecurity #DMARC #SPF #DKIM #EmailInfrastructure

CSA has published guidance on CVE-2025-52691, a critical SmarterMail vulnerability enabling potential unauthenticated remote code execution through arbitrary file uploads.

Although exploitation has not been observed, the advisory highlights the continued exposure of mail server infrastructure and the importance of timely upgrades to fixed builds.

Engage in the discussion and follow TechNadu for sober, research-driven security reporting.

#InfoSec #VulnerabilityResearch #EmailInfrastructure #RCE #PatchManagement #CyberDefense #TechNadu