Unwanted emails flooding your inbox can be frustrating, whether it’s spam, promotional content, or irrelevant messages. If you are using RoundCube Webmail, you may wonder how to block specific email addresses or filter out annoying senders.
Although RoundCube doesn’t have a direct ‘Block’ button like Gmail or Outlook, you can still stop unwanted emails effectively using filters.
In this guide, we will walk you through step-by-step instructions to block emails in RoundCube Webmail. By the end, your inbox will be cleaner and more secure.
Also Read: How to Change the Time Zone in cPanel Roundcube Webmail?
Steps to Block an Email Address in RoundCube Webmail
Here’s how to do it using RoundCube’s filter settings:
➔ Log in to your Webmail account.

➔ Once logged in, navigate to the ‘Manage Your Inbox’ section.

➔ In that, click on ‘Email Filters.’ With this, you will be taken to the filter management area.

➔ Click on ‘Create a New Filter.’

➔ Give your filter a name, like ‘Block Spam Sender.’

➔ Under the Rules:

- Choose ‘From’ in the first dropdown.
- Select ‘contains’ in the second dropdown.
- Enter the email address you want to block (e.g., spam@example.com).
➔ Now, you have to choose what should happen when RoundCube detects this email: Under ‘Actions’, select ‘Discard message.’

➔ Once done, click ‘Create’ to apply the filter.

Also Read: Simple Steps to Set Up Email Forwarding in cPanel?
Final Thoughts
While RoundCube may not have a big red ‘Block’ button, its filtering system is powerful and customizable. Whether you want to stop spam, block annoying senders, or keep your inbox clean, setting up filters is the best way to go.
So go ahead, take a few minutes, set up your email blocks, and enjoy a clutter-free inbox!
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Frequently Asked Questions
1. Can I block emails from a specific subject line?
Yes. In the filter condition, you need to select ‘Subject’ instead of ‘From’, and enter the keywords to match.
2. Will the filter work if I’m not logged into RoundCube?
Yes. The filter works server-side, so it blocks emails regardless of whether RoundCube is open or not.
3. Can I block emails from multiple senders in one filter?
You can’t directly add multiple ‘From’ conditions in one filter in some versions of RoundCube. Instead, create individual filters for each sender or use wildcard domains to block groups.
4. Do filters work instantly?
Yes, filters take effect immediately on new incoming emails after being saved. They won’t remove emails already in your inbox.
