email authentication Archives - 7ASecurity Blog https://7asecurity.com/blog/ 7ASecurity Blog With Cybersecurity Tips and Tools Wed, 22 Apr 2026 12:36:13 +0000 en-US hourly 1 https://7asecurity.com/blog/contents/uploads/2019/06/favicon.ico email authentication Archives - 7ASecurity Blog https://7asecurity.com/blog/ 32 32 Guide To SMTP Security & Compliance For Email Infrastructure https://7asecurity.com/blog/2025/12/smtp-security-guide/ Tue, 02 Dec 2025 14:16:59 +0000 SMTP was built for a trusted network that no longer exists. Without native security controls, email infrastructure remains a prime attack surface for phishing, spoofing, business email compromise, and data exfiltration.  Regulatory bodies now explicitly recommend modern authentication standards to protect organizational communication. This guide walks through transport security, authentication hardening, server configuration, and compliance …

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