Sendfeather Email Checker

MX, SPF, DKIM & DMARC checks

Only for Mac

Free

Mac

Check any domain's email setup — MX, SPF, DKIM and DMARC — right in Safari, with plain-language verdicts. Free, no account, no tracking. Sendfeather checks a domain's email setup the way mailbox providers do — MX, SPF, DKIM and DMARC — and explains what each record says in plain language. Click the toolbar icon and the popup fills in the domain you are on (or type any domain). Each check gets a verdict — Passed, Review or Failed — with a short explanation of what the record means for delivery and, when something needs attention, what to fix first. Open a check's details to see the actual records found, DNS lookup counts, the DKIM selectors probed and where reports go. Why it is different: • Plain language, not scores. Every verdict states facts: which record exists, which policy is in force, and what receivers will do about it. • Honest about limits. DKIM selectors are chosen by your sending provider; when the probe cannot find one, the extension says so instead of guessing. • Private by design. Checks run in your browser against public DNS-over-HTTPS resolvers (Cloudflare, falling back to Google). Nothing is sent to Sendfeather or anyone else — no account, no analytics, no stored data. • Minimal permissions. It reads the current tab's address only when you open the popup (to prefill the domain box) and can talk only to the two DNS endpoints. Free. No account. Built by the team behind Sendfeather — email infrastructure on Amazon SES. The full checker, with fix guides for every record, lives at https://sendfeather.com/tools/email-checker.

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The developer, TOLGA CAN GNEL, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    TOLGA CAN GNEL
    Size
    150.5 KB
    Category
    Developer Tools
    Compatibility
    Requires macOS 26.6 or later.
    • Mac
      Requires macOS 26.6 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2026 Sendfeather
  • Developer Website
  • Privacy Policy

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