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When creating and sending emails its important to follow best practices so your emails don’t end up on an email blacklist. Once you’ve been marked on an email blacklist, it reduces your organization’s credibility and impacts delivery for your emails. To ensure your emails end up in your reader’s inboxes, here’s what you need to know about email blacklists.

What is an Email Blacklist?

An email blacklist is a database that uses specific criteria to determine if a company is sending SPAM, or “junk” emails. Once an IP address is listed on an email blacklist, it reduces email deliverability from that address. There are several different blacklists and each of these databases is updated in real-time. Most blacklists are public and can be checked directly by scanning your IP address or domain.

How did I Get On an Email Blacklist?

If you’re on an email blacklist, it ultimately means that your email was marked as SPAM, or “junk mail.” Emails marked as SPAM are typically unsolicited messages that could contain harmful or misleading links. There could be several reasons why your emails were marked as SPAM, and there are a few key indicators that can trigger this.

One main indication of email SPAM is your email’s deliverability and open rate. If either is low, it could mean you are sending emails to a people that haven’t signed up to receive your emails. Another way your email can be marked as SPAM is in your headline. If you’re using all caps, too much punctuation or salesy pitches, those can all trigger a SPAM filter – putting you directly on an email blacklist.

How do I Find Out if I’m On an Email Blacklist?

First, find out the IP address of the email servers sending your emails or use your domain to search. Then run the IP address or domain on different blacklist sites to pinpoint which ones you’re on. Here are a few of the most common blacklist sites:

How do I Get Off an Email Blacklist?

Once you’ve identified the problem with your emails, fix it. Make sure to follow email delivery best practices, like updating your lists regularly and revising your content. Once you’ve taken the steps to improve your emails, follow the blacklist-removal process. This can be found on the blacklist’s site that your IP address is listed on.

Before sending emails, you can check your content using tools like and to see if your email is triggering any SPAM filters. Emails are a great way to stay in touch and get a message out, but getting your message to be heard can be tricky.


Not sure if your message is getting through? Contact the experts at Greenleaf Media to create a marketing campaign and ensure your emails are following best practices.