|Description||open the official USPS website. Check your mail online, you have to go official site of USPS which is www.usps.com. Here you will get a solution to your problems, answers to your questions. You have to open the above link in new tab in your browser but don’t close this tab also because with this tab you will follow the step-by-step instructions to complete your task. So keep both the tabs open so that you can read the instructions from here. You will get two option to hold the mail that is Quick tools and track and manage.