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Email DNS records, explained
Four DNS records decide whether your email arrives and whether it is trusted. Here is what each one does, what it looks like and what usually goes wrong.
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What is an MX record?
MX records tell every other mail server where to deliver email for your domain. They must point to your provider and nowhere else.
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What is an SPF record?
SPF is a TXT record that lists the services allowed to send email from your domain, so receivers can spot forgeries.
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What is DKIM?
DKIM publishes a public key so receivers can confirm your messages really came from you and were not changed on the way.
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What is DMARC?
DMARC tells receivers what to do with mail that fails SPF and DKIM, and where to send reports about it.
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