How to Blacklist a Domain in Plesk

Do you often deal with undesirable participants from unsolicited emails and participants from a particular domain who look suspicious?

Don't worry! You can cloak a domain as a shortcut in Plesk to prevent undesirable communication or access. Hosting your server is not just about managing it but also about hosting the environment for clients.

Plesk helps you to face the challenge of such assignments by providing a more manageable way out.

Here's a step-by-step guide on how to blacklist a domain in Plesk.

Let’s get started!

Step 1: Log in to Your Plesk Control Panel

Log into your Plesk control panel to prioritize your tasks. Launch your browser, type in the URL that your hosting company sent you, and then click "/login." Next, enter your username and password to access your Plesk dashboard.

Step 2: Access the Spam Filter Settings

After you have logged in, select the "Mail" tab from the dashboard's left-hand menu. To view the spam filter settings for your domain, choose "Spam Filter" from that menu.

Step 3: Add the Domain to the Blacklist

You can manage incoming emails with several choices in the spam filter settings. See the section about banning or blacklisting domains. You can add domains to the blacklist using this option.

To continue, just click the "Add Domain" button or link. The domain name you want to blacklist can be entered in a new window or form that opens. After entering the domain name in the designated field, click "Add" or "Save" to ensure.

Step 4: Verify the Blacklist Entry

It's wise to confirm if the entry was successful after adding the domain to the blacklist. A list of blacklisted domains can be found in the spam filter settings of the majority of Plesk installations. The domain you recently added ought to be shown there.

Double-check to ensure that the domain name is spelled correctly and that there are no typos or errors. If everything looks good, you can proceed to the next step.

Step 5: Test the Blacklist

You may run a fast test to confirm that the domain is banned. Email one of your accounts on the same server from an address connected to the forbidden domain. If all is configured correctly, the email should be banned or redirected to a spam folder.

As an alternative, you might attempt to use a browser to visit a website or service connected to the banned domain. If the domain has also been blocked from being accessed over the Internet, you should receive an error message or be unable to access the website.

Step 6: Monitor and Adjust as Needed

To make sure the blacklist is working once you've blocked the domain, you must keep an eye on your email and server activities. If the banned site tries to send emails or use your server resources, keep a watch on the spam filter logs.

You might need to modify your blacklist settings if you find any problems or if valid emails are being banned. You may take domains off the blacklist or make other changes with Plesk as needed.

Step 7: Consider Additional Security Measures

While blacklisting a domain can help mitigate unwanted communication or access, it's not always foolproof. Add extra security features like intrusion detection systems, email filters, and firewall rules to better safeguard your server from fraudulent activities.

By being vigilant about security, you can better protect your server and prevent attacks from impacting your operations.

Final Words

Blocking Plesk using blocking a domain should simplify the process and help you easily block traffic from any unwanted sources. With the few easy steps provided, you can set up your server for a blocklisting of a specific domain or whatever it may be.

Make it a rule to periodically check your allowlist entries to see that they are up-to-date and change them if your settings are inadequate to provide the required security. Plesk's easy-to-operate platform and complete tools for maintaining your server's security are now held as a candle in the wind! For more details, reach out to experts.