Enter a URL
How to use the Blacklist Lookup
- 1
Enter the domain (or the domain of your mail server).
- 2
Wait a few seconds while each blacklist is queried.
- 3
Any list marked "Listed" needs attention - visit that list's website to request removal.
About the Blacklist Lookup
Blacklist Lookup resolves a domain to its IP and checks it against thirteen actively maintained DNS blacklists, including Spamhaus ZEN, SpamCop, Barracuda and UCEPROTECT. A listing usually means spam or abuse was seen from that IP and can cause email from it to be rejected.
Each list is queried live and only a real listing answer counts, so error responses from a list are never reported as a listing.
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Frequently asked questions
My site is listed - what should I do?
Find and fix the cause (a compromised account, open relay or spam script), then use the delisting form on that blacklist's website.
Does a listing affect SEO?
Not directly, but it can stop your emails reaching customers and may indicate a security problem on the server.
Why check the web server and not my mail server?
Enter the hostname that sends your email (often mail.yourdomain.com) to check the mail server's IP specifically.