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Free Email Blacklist Checker
unspam.email
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Every place a page here uses this source, in the order the words come in it.
What an email blacklist really checks “Spam blacklists are built around DNS, so they track reputation by domain and by sending IP address, not by individual mailboxes.” How to read your result
“Paste an email address and we check its domain against a curated set of public domain and reputation blacklists, grouped by importance, in real time.” Catch problems before they cost you.
What an email blacklist really checks “This tool takes the part of your address after the @, then queries SURBL and other public domain blacklists to see if that domain has been flagged in spam, phishing, or malware campaigns.” How to read your result
Not listed The domain is not currently listed on any of the checked blacklists. This is the result you want, though it does not guarantee inbox placement on its own. “Each result row shows which list flagged your domain.” Domain, not address The result reflects the whole domain, so every mailbox on it shares the same status. Fixing a listing helps everyone who sends from that domain.
Not listed The domain is not currently listed on any of the checked blacklists. This is the result you want, though it does not guarantee inbox placement on its own. “SURBL also decodes the listing into a category (phishing, malware, abuse, or cracked site); the other lists report a listing without a category.” Domain, not address The result reflects the whole domain, so every mailbox on it shares the same status. Fixing a listing helps everyone who sends from that domain.
Domain, not address The result reflects the whole domain, so every mailbox on it shares the same status. Fixing a listing helps everyone who sends from that domain. “These lists do not cover your sending server.” Domain registration (RDAP) The checker also shows the domain's public registration data: registrar, age, expiry, and name servers, fetched directly from your browser against the public RDAP service. A very new or recently re-registered domain often has a weaker reputation, so registration age is a useful signal alongside the blacklist result.
Domain, not address The result reflects the whole domain, so every mailbox on it shares the same status. Fixing a listing helps everyone who sends from that domain. “Run the IP blacklist checker on the IP that actually sends your mail to see the other half of the picture.” Domain registration (RDAP) The checker also shows the domain's public registration data: registrar, age, expiry, and name servers, fetched directly from your browser against the public RDAP service. A very new or recently re-registered domain often has a weaker reputation, so registration age is a useful signal alongside the blacklist result.
Clean blacklist but mail still lands in spam “Weak authentication, poor sending history, or low engagement can still hurt placement.” A shared or new domain shows a listing
Domain is listed but the IP is clean “Find why your domain appeared in spam or phishing mail, then use the SURBL removal form to request delisting once the cause is fixed.” You expected to check one mailbox
What an email blacklist really checks “There is no such thing as a blacklist for a single email address.” How to read your result
How to read your result “This is the result you want, though it does not guarantee inbox placement on its own.” Listed Each result row shows which list flagged your domain. SURBL also decodes the listing into a category (phishing, malware, abuse, or cracked site); the other lists report a listing without a category. A listing means the domain has appeared in flagged messages.