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Lookup | Reputation Checker | Spamhaus. Do you have problems sending email? Do you need to check if an. IP address. or. domain name. is on one of our. blocklists. ? Relax, you’re in the right place. We’re here to help. ARE YOU A VULTR CUSTOMER? If you are experiencing email issues, but you’re not listed, and use Vultr please read this help guide.
- Domain Name
Find frequently asked questions relating to Spamhaus' data...
- The Spamhaus Project
Strengthening trust and safety online through IP and domain...
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IP and Domain Reputation Checker. Cookie Policy. COOKIES...
- IP DNSBL for effective email filtering
The Spamhaus Blocklist contains IP addresses that have been...
- Domain Name
The Spamhaus Blocklist contains IP addresses that have been identified as malicious. These IPs are being observed in adversarial activity, e.g. sending spam, snowshoe spamming, hosting malicious content, behaving like a bulletproof hosting company or hijacking IP space.
Access your Spamhaus account to manage blocklists and check the reputation of IPs and domains for effective email filtering.
The blacklist check will test a mail server IP address against over 100 DNS based email blacklists. (Commonly called Realtime blacklist, DNSBL or RBL). If your mail server has been blacklisted, some email you send may not be delivered.
Instantly check IP/Email/Domain in 50+ anti-spam blacklists. Find proof of blacklist record in anti-spam databases. Enhance security now!
Use the Blocklist Tester to check if your mail servers are correctly configured to use our blocklists. Troubleshoot your email and DNSBL config now.
This tool allows you to check domains, IPs and subnets to see if they exist in the Spam.org Block List (SOBL) or the Spam.org Complaint List (SOCL). We recommend that you check out the glossary to learn about our lists and how they work. Need automated access? This tool is available via our API.
