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If reading DNS record syntax makes your eyes glaze over, this animated walkthrough is the fastest way to actually understand what SPF, DKIM, and DMARC are doing and why all three exist together. Watch this before you touch your domain's DNS settings for the first time.
How to Configure SPF, DKIM, and DMARC for Your Domain
On PowerCert Animated Videos (YouTube)
- SPF lists which servers are allowed to send mail for your domain
- DKIM proves the message was not altered in transit using a signed key pair
- DMARC tells receiving servers what to do when SPF or DKIM checks fail
