How to Block Unwanted Emails in Gmail [Google Chrome]

Cleaning up your email inbox may not be a top priority on your to-do list and with good reason. It’s a tedious and repetitive task, and while you might get a clean inbox today, it probably won’t stay that way tomorrow.

If you’re looking to block unwanted emails, particularly from certain senders who send you unsolicited messages, an extension for Google Chrome called Block Sender is a great solution. The extension blocks any sender you specify in your inbox, then replies to the sender with a fake message failure notice. As a result, the sender will stop sending future messages and will take your email address off a mailing list.

Upon installing the extension, a new tab will direct you to Gmail. If you’re already logged in, it should display your inbox.

Click on a message you want to block and then click on the Block button on the top portion of the email message.


As soon as you click the Block button, an Undo button will appear for 3 seconds, which gives you time to cancel the action. This time frame can be changed in the extensions’ Options page.

Additionally, a pop up window will confirm the action by showing you the sender’s email address. It will also ask you if you want to send a fake message of a sent failure to the sender.

The screenshot below shows the fake message that the sender will receive when you block his message.


Note that the sender will not be notified that the message was deleted or sent to the trash.

You can also choose more options for blocking by clicking on the arrow beside the Block button. In addition to blocking the sender, you can also block senders from all domains, or email messages with the same subject, or even a keyword or phrase.


The Options page can also be accessed from the same drop-down menu.

In Options, you can change blocking defaults. You can choose a default action when blocking a message or whether the blocked message goes to the trash or is permanently deleted.


This is also where you can change the default timeout for the Undo button.

To unblock a sender, click on the drop-down menu beside the Block button and select “Unblock Sender.”

While Block Sender is a great method of managing your inbox, a free account only allows for four blocks per month. To block unlimited senders, you will need to subscribe to their Pro plan for $29/year.


If keeping your inbox free of spam and unwanted messages is an important thing, then it’s worth the upgrade. While you can achieve the same effect by creating a filter in Gmail’s settings, that is a troublesome task and it doesn’t quite compare to this extension’s flexibility.

Although its features are limited without subscribing to the yearly plan, it’s still worth the try. The price to pay for a clean inbox may not be acceptable to everyone, in which case other free methods are always a good alternative. However, if you value your privacy and want an inbox free of clutter, then it’s not a bad thing to invest in a method that effectively takes care of it for you.