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How to Remove an IP Address from a Blacklist
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Go to our Blacklist Check page to find out if your IP address is listed on an anti-spam database. This article explains why that happens and how to get off a blacklist.

Each blacklist database has its own criteria for flagging IP addresses and compiling its own list of online offenders. Those criteria could include a variety of "listings": technical, policy, and evidence-based.

Technical listings occur mostly from mail-server configuration issues, such as missing or incorrect reverse DNS records, missing or incorrect banner greetings, and mail servers operating within a suspicious range of IP addresses.
Policy listings are based on an operator that does not wish to receive email from certain countries, or ISPs, that have a history of not honoring "unsubscribe" requests.
Evidence-based listings are those where the operator has received direct (or indirect) evidence that an IP address has been involved in sending unsolicited emails.

If your IP address has been blacklisted and you want to investigate, you'll need to visit the blacklist's website and do a lookup on your IP address. Most blacklist databases will provide general listing reasons, but don't list specific email addresses tied to blacklisted IP addresses.