Check your email deliverability — SPF, DKIM & DMARC
A message in the spam folder might as well never have been sent. Enter your domain and find out in seconds whether your mail records are set up right.
A message in the spam folder might as well never have been sent. Enter your domain and find out in seconds whether your mail records are set up right.
Think of them as your email's credentials: SPF is the list of servers allowed to send for your domain, DKIM is a digital seal on each message proving it wasn't forged, and DMARC is the instruction telling Gmail and Outlook what to do with a message that claims to be you but fails the checks. Together they make mail providers trust your messages.
The most common cause is missing or broken DNS records — the receiving provider can't verify the message is really from you, so it plays safe and files it as spam. Other causes: your domain is on a blacklist, or your content looks promotional. Start with the check above — it surfaces the first problem.
You add a TXT record named _dmarc on your domain that sets your policy — the safest start is v=DMARC1; p=none with a reporting address, then you tighten gradually to quarantine and reject. If your domain or email is with us, just ask and we'll set it up for you.
Yes. The check reads your domain's DNS records no matter who hosts your mail — Google, Microsoft or anyone else. Even on Workspace, SPF, DKIM and DMARC still have to be set on your domain, and this tool tells you if anything's missing.
All our tools are free forever — one account for everything