Blacklist Checker Tool
Check if a domain or IP address is listed on major spam blacklists that could affect email deliverability.
About This Tool
What is Blacklist Checker Tool?
Check if a domain or IP address is listed on major spam blacklists that could affect email deliverability.
Frequently Asked Questions
What are DNS blacklists?
DNS blacklists, also known as RBLs (Real-time Blackhole Lists) or DNSBLs, are databases of IP addresses and domains known or suspected to send spam or malicious content. Email servers check these lists to decide whether to accept or reject incoming mail.
Why might a domain or IP be blacklisted?
Common reasons include sending spam emails, hosting malware, operating as an open relay, having compromised (hacked) servers, generating excessive bounces, or receiving too many spam complaints. Sometimes, shared hosting IPs can be blacklisted due to the activities of other customers on the same server.
How do I get removed from a blacklist?
Each blacklist has its own delisting procedure. Generally, you'll need to: 1) Identify and fix the issue that caused the listing, 2) Visit the specific blacklist's website to request removal, 3) Follow their instructions which may include filling out forms or paying fees, and 4) Implement proper email practices to prevent future listings.
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