“Listed on UCEPROTECT Level 3” – what it means
Verdict: Usually ignore. UCEPROTECT Level 3 lists entire networks (autonomous systems, e.g. a whole hosting company), not your IP. Very few mail servers use Level 3, and paying for removal isn't needed; check Level 1 for your own IP instead.
What the warning checks
Level 1 lists single IPs that hit spam traps; Level 2 lists ranges; Level 3 lists whole provider networks with many listed IPs.
Does it hurt email delivery?
- A Level 3 listing says nothing about your own server's behaviour.
- Very few filters use Level 3, and major mailbox providers aren't known to.
What to do
- Check that your IP is not on Level 1 – that one is about you.
- If Level 3 ever causes real bounces at a specific receiver, ask that receiver to stop using it, or send through a relay with a clean network.
Check what actually matters
SPF, DKIM and DMARC decide whether Gmail, Outlook and Yahoo accept your mail.
After the fix, send a test email to see SPF, DKIM and DMARC pass on a real message, then keep an eye on it: free DMARC monitoring shows every service that sends mail as your domain and which ones fail, in plain English.
Get it fixed on Fiverr
Prefer to do it yourself? Get the step-by-step Fix Kit ($15) – 28-page guide, checklist, 20+ providers.