SPF

2 articles about SPF

DNS

NIST DNS update: What this means for your organization

Mar 25, 20265 min read

NIST SP 800-81 Revision 3 reframes DNS as an active security layer for the first time since 2013. Here's what changed and why it matters for DMARC, SPF, and DKIM.

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4 free tools for quick email security testing

Dec 1, 20254 min readJack Lilley

Four free tools from Red Sift to audit your email authentication in minutes: Investigate for DMARC, SPF Checker, BIMI Checker, and Blacklist Checker.

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