Free email security check

Criminals often send email that looks like it came from a tax firm to trick clients into sending documents or payments. Three DNS settings (SPF, DKIM and DMARC) make that much harder. We check your domain's settings, then you send us one email so we can see how it arrives. Free, about two minutes.

We only read your domain's public DNS records and the technical headers of the one test email you send. We do not read or keep the message body.