Whizardries DNSBL

DNS-based Block List for spam and abuse sources

Check an IP address or hostname

Accepts IPv4 addresses, CIDR ranges (e.g. 192.0.2.0/24), or hostnames / domains.
About this blocklist

This DNSBL lists IP addresses, IP ranges, and hostnames that have been identified as sources of spam, abuse, or other policy violations.

Mail servers and other systems query this list via DNS to make filtering decisions.

If you are listed

Use the lookup above to find your entry. If your listing is unlocked, you may self-delist immediately. Locked entries require administrator review — please contact block-admin@whizardries.com.