Check your SPF, DKIM, and DMARC records in seconds. These three DNS records determine whether your emails land in the inbox — or in spam.
We'll email you if your SPF, DKIM, or DMARC records break — free.
SPF tells the world which mail servers are allowed to send emails from your domain. Without it, anyone can spoof your address. It's a TXT record on your root domain that looks like: v=spf1 include:_spf.google.com ~all
DKIM adds a cryptographic signature to every email you send. The receiving server checks this signature against a public key published in your DNS. If it matches, the email is authentic and hasn't been tampered with in transit.
DMARC ties SPF and DKIM together and tells inbox providers what to do when an email fails authentication — quarantine it, reject it, or let it through. It also enables reporting so you can see who's sending on your behalf. Example: v=DMARC1; p=quarantine; rua=mailto:dmarc@yourdomain.com
Lume's built-in DNS wizard configures SPF, DKIM, and DMARC in under 10 minutes. Plus — you get a full self-hosted email engine for $49/mo.
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