Enter your domain and we'll check your DMARC, SPF, and DKIM records — then explain what they mean in plain English.
We only look up public DNS records. We don't store your domain or send you spam.
DMARC doesn't work alone. It builds on SPF and DKIM to tell inbox providers what to do when something looks wrong.
SPF is a list in your DNS of mail servers permitted to send email for your domain. If someone sends from a server not on that list, receivers may flag or reject it.
Think of it as a guest list for your domain's outbound mail.
DKIM adds a digital signature to outgoing mail. Receiving servers verify it against a public key in your DNS — confirming the message wasn't altered in transit.
Like a wax seal on a letter.
DMARC tells inbox providers what to do with mail that fails SPF or DKIM: monitor (none), quarantine, or reject. It also tells them where to send reports about who's sending as you.
The policy layer that ties everything together.
Most businesses have more senders than they realize. Every service that sends as your domain needs to be in your SPF record and signing with DKIM.
Setting up DMARC, SPF, and DKIM across Microsoft 365, Google Workspace, and your marketing tools takes time and DNS know-how. Network26 handles it for businesses across Washington — usually in a single session.