Email Authentication on Secure Techieshttps://securetechie.com/tags/email-authentication/Recent content in Email Authentication on Secure TechiesHugoen-usFri, 18 Sep 2026 00:00:00 -0700DMARC for Small Business: From Monitor to Rejecthttps://securetechie.com/blog/dmarc-for-small-business/Fri, 18 Sep 2026 00:00:00 -0700https://securetechie.com/blog/dmarc-for-small-business/<p>Here&rsquo;s the short version: <strong>DMARC for small business is a DNS policy you tighten in public, not a checkbox you set to reject on day one.</strong> SPF and DKIM have to work first. Then <code>p=none</code>, then quarantine, then reject. Skip the ladder and you will block your own invoices.</p>A Close Call With a Fake Wire Instructionhttps://securetechie.com/case-studies/wire-fraud-email-close-call/Thu, 13 Aug 2026 00:00:00 -0700https://securetechie.com/case-studies/wire-fraud-email-close-call/A San Fernando Valley law firm almost sent a settlement wire after a lookalike email used a partner&rsquo;s display name. Staff called the partner on a known number first. The partner had not sent it. Secure Techies reviewed the mailboxes, closed identity gaps, set email authentication on a path to enforcement, and left a written call-back that is now a rule, not a suggestion.