Check email blacklist

There are several email blacklists that you can check to see if your IP address or domain is listed. Here are a few popular ones:

  1. Spamhaus: Spamhaus is one of the most well-known and widely used email blacklists. You can check if your IP address or domain is listed on their website.

Website: www.spamhaus.org

  1. Sender Score: Sender Score is a blacklist maintained by Return Path, a company that specializes in email deliverability. You can check your IP address or domain's Sender Score on their website.

Website: www.sender-score.com

  1. Surbl: SURBL (Spam and UCE Reporting Blocklist) is a blacklist that focuses on IP addresses and domains that are known to send spam or unsolicited commercial email.

Website: www.surbl.org

  1. SpamRBL: SpamRBL is a blacklist that uses a combination of algorithms and human review to identify IP addresses and domains that are sending spam.

Website: www.spamrbl.com

  1. DNSWL: DNSWL (Domain Name System White List) is a blacklist that focuses on IP addresses and domains that are known to send legitimate email.

Website: www.dnswl.org

To check if your IP address or domain is listed on any of these blacklists, you can follow these steps:

  1. Go to the website of the blacklist you want to check.
  2. Enter your IP address or domain in the search bar.
  3. Click the "Search" or "Lookup" button.
  4. Check the results to see if your IP address or domain is listed.

If your IP address or domain is listed on a blacklist, it's likely that your email is being flagged as spam or blocked by email providers. You'll need to take steps to clean up your email list and improve your email deliverability.