DNS TXT Records: SPF, DKIM, DMARC, and Why One Typo Breaks Everything
TXT records power email authentication and domain verification. Learn what they do, common mistakes, and a typo-proof checklist.
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Posts tagged with dns
MX Record Priorities Explained - Why Lower Numbers Win
Learn how MX record priority numbers work and why misconfigured priorities can send your email to the wrong server
Read articleDMARC Alignment Explained: Why Misalignment Makes Your Domain Spoofable
Understanding DMARC alignment is crucial for email security. Learn why your From: domain must match your SPF or DKIM domains to prevent spoofing.
Read articleThe DNS Propagation Myth: Why TTL Matters More Than You Think
DNS doesn't take 24-48 hours to propagate. Learn how TTL values control DNS caching and how to minimize downtime during DNS changes.
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