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How to Check If Your DNS Changes Are Working

What this is

How to verify your SPF, DKIM, and DMARC updates.


Why it matters

DNS changes don’t apply instantly and need to be verified.


What to do

  1. Wait for DNS propagation (can take up to 24 hours)

  2. Use a DNS checking tool like MXToolbox

  3. Enter your domain and check:

    • SPF

    • DKIM

    • DMARC


What to look for

  • Records are visible

  • No errors

  • Correct formatting


Expert insight

If changes don’t show immediately, it’s usually propagation delay, not a mistake.


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