Email Blacklist Checker
Check if your mail server is listed on 8+ email blacklists. Enter a domain or IP address to get instant results.
Checks 8 blacklists: Barracuda, SpamCop, UCEPROTECT L1, PSBL, S5H, SORBS SPAM, Spamhaus ZEN, SURBL
How do I check if my email server is blacklisted?
Enter your domain name or mail server IP above and run the check. The tool queries 8+ major DNS-based blacklists (DNSBLs) like Spamhaus, Barracuda, and SpamCop, then shows which lists, if any, your server appears on so you can request delisting.
About Email Blacklists
Email blacklists (DNSBLs) are databases of IP addresses known to send spam. Email servers check incoming mail against these lists to filter unwanted messages.
Why it matters: If your mail server is blacklisted, your emails may be rejected or filtered to spam folders by recipients.
Getting delisted: Each blacklist has its own removal process. Generally, you need to fix the underlying issue (compromised accounts, spam complaints, etc.) and then request removal through their website.
Frequently Asked Questions
What is a DNSBL?+
A DNSBL (DNS-based Blackhole List) is a database of IP addresses known to send spam. Email servers check incoming mail against these lists to filter spam.
Why is my mail server blacklisted?+
Common reasons include sending spam (even unintentionally), compromised accounts, poor email practices, or sharing an IP with spammers. Each blacklist has different criteria.
How do I get removed from a blacklist?+
Each blacklist has its own delisting process. Most require you to fix the underlying issue first, then submit a delisting request through their website. Some automatically delist after a period of no spam.
Check Your Full Email Deliverability
Blacklist status is just one factor. Check your SPF, DKIM, DMARC records and scan your email content for spam triggers.