What is a blacklist?

An indispensable practice to safeguard the integrity of your domain involves understanding and managing blacklists, which is why, this blog, we will explore what these lists are, highlight some of the most relevant ones, and learn how to use mxtoolbox.com to check the presence of your domain in them

What are blacklists?

Also known as blacklists, these compilations consist of IP addresses or domains identified as sources of malicious or unwanted activity on the network. Email service providers and other security systems use these lists to filter and block unwanted content.

Important blacklists

One of the most influential blacklists is Spamhaus, which focuses on identifying and blocking sources of spam. Another significant one is SURBL, specialized in tracking and blocking malicious URLs in emails, detecting links to websites that may contain malware or phishing. The Barracuda Reputation Block List (BRBL) focuses on identifying IP addresses associated with suspicious or malicious activities, providing an additional layer of protection. UCEPROTECT, on the other hand, excels in combating unsolicited email (spam) with a level classification system that assesses the severity of the offense.

Verification tool: mxtoolbox.com

To check the presence of your domain in blacklists, mxtoolbox.com is a valuable tool. Access the "Blacklist Check" section, enter your domain or IP address, and the tool will scan various blacklists, providing you with a detailed report.

What to do if your domain is on a blacklist?

Identify the cause: Investigate the reason behind the inclusion in the blacklist, which may be due to spam, malware, or malicious activities.

Resolve the issue: Address the root of the problem, such as removing malware, improving server security, or resolving configuration issues.

Request removal: Some blacklists allow you to request removal. Follow the procedures provided by the specific blacklist to initiate this process.

Continuous maintenance: Implement continuous security measures to prevent future inclusions in blacklists. Update software, use firewalls, and conduct security audits regularly.

We offer advice and support

If your IP or domain is on a blacklist and you need help removing it, Cantalupe can provide you with specialized advice and support. Contact us for a consultation and take the first steps towards the recovery of your domain's online reputation.