How to block unwanted emails from Gmail, Yahoo, Microsoft Outlook, and Mozilla Thunderbird, refer to the step-by-step instructions mentioned on this web page.


  • Step 1:Launch the default web browser on your computer and access the Gmail account using its email address and password.
  • Step 2:Click the Inbox folder on the left panel, select an individual email that you need to block, and open it.
  • Step 3:While move on with how to block unwanted emails guide, Click the down arrow icon beside the Reply option and choose the Block option.
  • Step 4:If you see the Block this email address dialog box, select the Block option.

Yahoo Mail:

  • Step 1:After opening a web browser on your computer, log in to the Yahoo Mail account using its credentials.
  • Step 2:Select the Inbox folder on the left panel and open any one of the unwanted emails.
  • Step 3:Copy the email address of the recipient, click the Setup icon at the top-right corner of the screen, and select the More Settings link.
  • Step 4:Select the Security and Privacy option on the left panel and click the Add button next to the Blocked addresses option.
  • Step 5:Paste the email address of the recipient that you copied earlier in the Enter the email address field and click the Save button.

Microsoft Outlook:

  • Step 1:Once you launch the main interface of the Microsoft Outlook email client, click the Home tab and proceed with how to block unwanted emails guide.
  • Step 2:Select the email that you want to block and choose the Block Sender option from the Junk drop-down menu.
  • Step 3:When you see the Microsoft Outlook dialog box on the screen, click the OK button.
  • Step 4:This will block the upcoming emails from the recipient.

Mozilla Thunderbird:

  • Step 1:You cannot directly block the recipient’s email address. You need to create a filter for blocking.
  • Step 2:Once you open the main interface of the Mozilla Thunderbird email client on your computer, open a message that you need to block.
  • Step 3:Right-click the email address of the recipient and choose the Create Filter From option.
  • Step 4:The Filter Rules dialog window will display on the screen. Fill the Filter Name field.
  • Step 5:Select the checkbox next to the Manually Run and Getting New Mail options.
  • Step 6:Navigate to the Perform these actions section and choose a necessary option from the appropriate drop-down list.
  • Step 7:Before completing how to block unwanted emails steps, Click the OK button in the Filter Rules dialog window and click the Run Now button in the Message Filter window.