Spam domain blacklist

Search and browse domains that have been identified as sending spam by IsEmailSpam. Our database currently contains more than 150,000 domains associated with spam activity.

Use the blacklist to check the reputation of a domain before trusting an email, clicking a link, or responding to a suspicious sender. Select a domain below to view its spam reputation and when it was first identified. Looking for a specific sender? Use our Domain Blacklist Checker to check a sender's domain, or use our Email Spam Checker to check an individual email address.

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