Step: 2 Click the More or 'i' symbol in the mail's upper right corner.
Step: 3 Select block.
Unsubscribe from mass emails, step-by-step guide:
You can use this to stop receiving emails from websites that you have subscribed to, such as newsletters and promotions.
Step: 1 Open Gmail.
Step: 2 Open the email from the sender you wish to unsubscribe.
Step: 3 Next to the sender's name, click Unsubscribe or Change Preferences.
Step: 4 You can choose to mark the messages as spam or to block them.
Step 5: After a few days of completing the instructions, the emails will be unsubscribed.