Email Blacklist Checker
Check if your domain or IP address is listed on major email spam blacklists. Free blacklist checker, instant results, no login.
Check Domain or IP Address
Checks against 15+ major email blacklist databases simultaneously.
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Email Blacklist & IP Reputation Scanner
Being blacklisted is the fastest way to kill your business communication. Our Blacklist Checker queries 15+ of the world's most influential Real-time Blackhole Lists (RBLs) and DNS Blacklists (DNSBLs) simultaneously. If your IP or domain is listed on Spamhaus, Barracuda, or SORBS, your emails will be blocked. Use this tool to monitor your reputation and start the delisting process immediately.
Multi-Database Scan
Query Spamhaus, Barracuda, SORBS, SpamCop, and 10+ other major blacklists in a single click.
Instant Listing Detection
Spot exactly which database is flagging your IP to pinpoint the source of your email delivery problems.
Reputation Monitoring
Regularly audit your mail server IP to stay ahead of reputation issues before they impact your business.
A DNS Blacklist (DNSBL) is a database of IP addresses and domains known to send spam or engage in malicious activity. Mail servers check these lists before accepting incoming email. If your IP is blacklisted, your emails will be rejected or sent to spam. This tool checks multiple major blacklists to help you identify and fix reputation issues.
"Don't panic if you're on a minor 'policy' blacklist like UCEPROTECT-L3; many of these are designed to force providers into paying for delisting and are ignored by major hosts. However, a listing on Spamhaus SBL or XBL is a 'Priority 1' emergency that requires immediate server audit and delisting submission."
What is this tool?
This tool checks if your website's IP address or domain is on a 'naughty list' (a blacklist) for sending spam. If you are on these lists, your emails will be blocked by major providers like Gmail.
How to use it
- Enter your domain name or IP address.
- Click 'Check Blacklists'.
- The tool will instantly ask 15+ different global spam databases if they have flagged you.
- Look at the results: Green is good, Red means you are listed and need to take action.
Real-World Use Cases
- Figuring out why all your company's emails are suddenly bouncing back.
- Checking a new server's IP address before you start using it to make sure the previous owner wasn't a spammer.
- Monitoring your email marketing infrastructure's reputation.
Example Outputs
The tool might show: 'Spamhaus SBL: Clean (Green)', but 'SORBS SPAM: Listed (Red)'.
How to Get Your IP Removed from a Blacklist
Delisting is a two-step process. First, you must stop the spam. If you don't fix the compromised account or malware on your server, the blacklist will simply relist you minutes after removal.
Second, visit the blacklist operator's official removal page and submit a request. Most major lists like Spamhaus offer a self-service removal tool for free. Avoid services that promise to 'fix' your reputation for a fee—delisting from legitimate lists is always free if you fix the technical problem.
Frequently Asked Questions
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