[Folderly Ecosytem] Email validator & Spam protection tool checker

We’re building a 100% accurate email validator that simulates a real send to tell you if a lead is truly valid.

Most validators ping DNS or MX records to guess if the email is safe. We don’t guess. Folderly's validator simulates the full sending process, like a real email, to detect whether a lead is truly reachable.

You get a clear verdict: valid or invalid. No false positives, no surprises. It works on both email addresses and domains, and even detects if the lead is protected by spam filters like Barracuda or Mimecast. That means you know exactly who’s inbox-ready and who will block or bounce your message before you hit send.

Why it matters for outreach:

• Protects your domain from blacklists

• Confirms every lead is safe before sending

• Prevents bounce-related deliverability drops

• Helps protect domain health & maintain high open rates

• Ensures every email you send has a chance to land and convert