DNSValidate: bulk SPF, DKIM and DMARC checker for agencies

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Want this running continuously?

We are building monitoring that watches these records and tells you when one breaks, collects your DMARC reports, and produces white-label reports for your clients. Leave an email and we will tell you when it is ready.

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The silent failure nobody checks

SPF allows a maximum of ten DNS lookups, counted across every include your record pulls in and everything those records pull in turn. Go one over and the record does not degrade gracefully, it returns a permanent error and SPF fails for every message you send, while the record itself still looks perfectly valid in every text editor.

A DMARC record with no rua is decoration

Publishing v=DMARC1; p=none and stopping there is the most common configuration on the internet, and it blocks nothing. Without a rua address nobody receives the aggregate reports, which means nobody can see who is sending as your client, and nobody can ever safely tighten the policy to something that actually rejects mail.

Built for agencies, not security teams

Every other tool is built for one domain owner or a security team. You manage forty domains for people who will blame you when their email lands in spam.