About ProbeKit
Updated 2026-10-07
What ProbeKit is
ProbeKit is a set of small, read-only checks of publicly visible settings for a domain, starting with mail configuration: SPF, DMARC, DKIM, MX and DNS records. Each check reads public DNS and explains what it found in plain language.
What it is not
ProbeKit does not guarantee that mail is delivered or that a domain is secure. It does not read mailboxes and does not probe mail servers. The results describe what is published at the time of the check.
Who operates it
ProbeKit is operated by NFI ApS, registration number 45583112.
Address: Langfreddal 3, 8471 Sabro, Denmark
Contact
Write to [email protected].