dnsbl-3.uceprotect.net

UCEPROTECT Level 3

UCEPROTECT Level 3 lists entire ASNs (Autonomous System Numbers) when an ISP has too many Level 1 and Level 2 listings. This is the most aggressive tier and is controversial.

Tier

Major

Impact

Low-Medium — Many email administrators consider Level 3 too aggressive and do not use it. However, some smaller filters do reference it.

Auto-expiry

Auto-expires after 7 days if the ASN's Level 1/2 listings decrease.

What it lists

Entire ISP/ASN ranges due to widespread abuse originating from that network.

How to get delisted

5 steps

01Check your ASN status at uceprotect.net
02This is an ISP-level issue — contact your hosting provider
03Request that your ISP address spam sources across their network
04Consider switching to a different hosting provider if your ISP is unresponsive
05Express delisting is available for a fee, but the underlying ISP issue needs resolution

Open the removal formhttps://www.uceprotect.net/en/rblcheck.php

What it lists

How to get delisted

Check UCEPROTECT Level 3 against your domain