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Spamhaus check for IP and domain

Check whether an IP address (Spamhaus ZEN) or a domain (Spamhaus DBL) is listed at Spamhaus, with an explanation of the lists and the way to get removed.

The Spamhaus lists at a glance

  • ZEN combines the lists for IP addresses. This check queries ZEN for an IP address.
  • SBL contains sources of spam, XBL hacked or malware-infected computers and PBL address ranges from which, according to the provider's rules, no emails should be sent directly (for example consumer connections).
  • DBL is the list for domains. This check queries the DBL for a domain.

Many mail servers query Spamhaus for every email. If the sender IP or a domain is listed, the email lands in spam or is rejected.

Learn more: Getting removed from Spamhaus · Blacklist check for IPs and domains

FAQ

What does it mean to be listed at Spamhaus?

Many mail servers query Spamhaus for every incoming email. If the sender's IP address or domain is listed, emails land in spam or are rejected.

What is the difference between ZEN and DBL?

ZEN combines the lists for IP addresses (SBL, XBL and PBL), the DBL lists domains. This check queries ZEN for an IP and the DBL for a domain.

How do I get off the Spamhaus list?

First fix the cause, such as a hacked account or an open mail server. Then request removal in the Spamhaus removal center. With the PBL the address often belongs to an access provider and is not listed because of your sending.