We know that Gmail can add other email sending addresses, but these addresses need to be verified before activation, which is troublesome. Now, the software Fastmail can be used to send anonymous emails, and the operation is very simple. Download the software, unzip it (no installation required), open the main interface window of Fastmail, first enter the disguise address "[email protected]" and the sender's name (Liu Dehua) in the "Sender" blank box, then input the corresponding text content in the "Recipient", "Subject", and "Content" blank boxes respectively, and finally click the "Send" button to complete it. Open your mailbox, see? This email with Liu Dehua as the sender has indeed arrived. Take a closer look.